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Easy Process Quality Assured Dedicated SupportA Vacuum Tube Hot Press Furnace is a combination of vacuum/atmosphere, hot pressing forming and high temperature sintering. It is suitable for high temperature hot forming of new materials such as dry powder metallurgy and functional ceramics. Vacuum sintering of alloy materials composed of metals and high-temperature sintering of ceramic materials silicon carbide and silicon nitride can also be used for dry powder or crushing at a low temperature of the melting point of the main component. Metallurgically bonded to increase its strength.
Vacuum Tube Hot Press Furnaces are widely used in various industries and research fields, offering precise and efficient heating and pressing capabilities. Here are some of their main application areas:
The Vacuum Hot Press Furnace is a comprehensive set of equipment designed to heat and pressurize materials under controlled conditions, whether in a vacuum or atmospheric environment. This advanced system is tailored to meet the specific needs of various materials and heating temperatures, offering a range of heating elements such as graphite heaters, molybdenum heaters, and induction heating. The furnace supports both one-way and two-way pressurization through a hydraulic system, ensuring precise control over the pressing process.
Key features of the Vacuum Hot Press Furnace include:
The split vertical heating furnace body is adopted for the vacuum tubular furnace, the vacuum hot pressing chamber is sealed with high temperature furnace tube and stainless steel flange, and the pressure stroke adopts the vacuum corrugated pipe for up and down movement under vacuum state; The electric hydraulic press machine is used for the pressure generating, and the pressure column is made of graphite rod and graphite mold. When powder is heated to the target sintering temperature while pressurized, the target materials can be sintered into dense and uniform products in a short time.
Operator safety is the top important issue! Please operate the equipment with cautions. Working with inflammable& explosive or toxic gases is very dangerous, operators must take all necessary precautions before starting the equipment. Working with positive pressure inside the reactors or chambers is dangerous, operator must fellow the safety procedures strictly. Extra caution must also be taken when operating with air-reactive materials, especially under vacuum. A leak can draw air into the apparatus and cause a violent reaction to occur.
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Laboratory tube furnace is one classic external heating high temperature tube furnace, also named hot wall heating furnace.
According to the different working temperature, furnace tube material usually can be transparent quartz tubes, high purity alumina ceramic tubes and high strength metal alloy tubes.
To meet different thermal researching purposes, tube furnace can be designed with multi heating zones, so as to have a flexible control of temperature gradient in the tube working chamber; furnace tube can work with a controlled atmosphere working environment or a high vacuum working environment.
Tube furnace heating elements are placed surrounding the cylindrical cavity, furnace can only heat the samples in the cylindrical cavity through indirect thermal radiation, since furnace tube can prevent sample material from contacting with furnace heating elements and insulation materials, so tube furnace creates a clean isolated heat chamber and reduce risks of the sample material contaminating by the furnace.
Tubular furnace is mainly used in metallurgy, glass, heat treatment, lithium anode and cathode materials, new energy, abrasives and other industries, and is a professional equipment for measuring materials under certain temperature conditions.
Tube furnace features simple structure, easy operation, easy control and continuous production.
Tube furnace is also widely applied in the CVD (chemical vapor deposition) and plasma enhanced CVD systems.
Tube furnace can work with different mechanical functions smoothly, so there are many different types tube furnace variations for different experiment purposes, typical furnace furnaces are as below:
Canadians are spending more time at home these days and it’s taking a toll on our homes. All our appliances, including the furnace, are working harder than ever. It’s important to ensure your furnace is in good shape, especially if it’s more than 15 years old.
If you’re not prepared, replacing your aged or malfunctioning heating system can be overwhelming. Speaking with friends, neighbours, and family members is often our first step to getting advice but collecting accurate, unbiased information about your furnace purchase and repair options will help you make better decisions. That’s the exact information this furnace buying guide provides.
In this guide, you’ll learn about:
In the following section, we discuss the common subjects and terms you will encounter while researching and purchasing a furnace. We also discuss when to replace your furnace or HVAC unit, what size furnace you need, and furnace efficiency ratings.
A furnace operates by using a fuel source — usually natural gas, propane, electricity, or oil — to produce heat. The heat produced flows through a ventilation system and warms the home.
Let’s look at a natural gas furnace for a detailed example.
Once the thermostat activates the furnace, a gas control valve opens and regulates the fuel pressure to the burners. A pilot flame or ignitor electrode ignites the fuel and fires directly into the primary heat exchanger. The hot exhaust gases move through the internal heat exchanger passages to heat the metal and exit through a vent pipe to the outdoors. A blower assembly then moves air over the hot external surface of the heat exchanger. This hot air is then circulated through the duct system within the home to heat each room. Once the thermostat registers heat levels that match the set temperature, the furnace shuts off.
Most furnaces contain the following parts:
If any of these parts break or work inefficiently, your furnace may need repairs or replacement.
Replacing a furnace can be a complex process, and we suggest consulting an HVAC expert about the decision. Here are a few guidelines you can use to determine if it’s time to have a consultation:
Later in the guide, we dive deeper into furnace maintenance and troubleshooting. If you want a more in-depth explanation about how each type of furnace works, skip to the section on furnace types.
One way to determine which furnace is right for your home is by considering your desired efficiency rating. Efficiency will affect the price and performance of the unit. The higher a furnace’s AFUE rating (Annual Fuel Utilization Efficiency), the more efficiently it will operate saving you money over the life of the furnace, but then these will also generally be more expensive upfront.
Furnace efficiency is measured by its AFUE rating, which shows how much fuel converts into heat versus how much energy gets lost during the combustion process.
Natural gas furnaces sold in Canada must be high-efficiency with an AFUE rating of 90% or more. The most efficient units have a rating of 98-99%. The majority of units installed by Enercare run by 95-96.5% efficiency with a few models as high as 98% and 99%. As you determine your desired efficiency, keep in mind that AFUE may decline over the years because of dirty components, aging of the appliance and its parts, damaged parts and clogged furnace filters if regular maintenance isn’t done.
Annual furnace maintenance by a licensed furnace or HVAC technician is the best way to ensure your furnace operates at peak efficiency for its lifetime.
Aside from the AFUE rating, you should also consider the furnace model and the different stages of operation for the fan motor. There are three types of fan speed tiers – single stage, multi-stage, and variable stage. While there are three types of motors installed in furnaces, government regulations dictate that all new furnaces sold in Canada must include a multi-stage or variable stage fan motor.
Single-stage furnace fans operate at a single speed and can be found in older furnaces. The motor is either on or off, with no speed variance in between. Single-stage fans are no longer available for sale in Canada due to efficiency regulations. At a minimum, all new furnaces must have a multi-stage fan. Top-tier furnaces have a variable speed fan.
The multi-stage furnace has two stages of heating operation. This means the unit is better able to manage the temperature and comfort of your home. If you want to maintain more constant and even temperatures, we recommend keeping the furnace fan running all the time to circulate the air throughout the home. Please note that continuously running your fan does marginally increase electricity and fuel use.
Variable stage furnaces and blowers function similarly to the gas pedal in a car. Depending on your desired speed, you can press the gas pedal to match your needs. Along the way, you can hit every speed from 0-100, which allows for the furnace heating and fan speed to meet the needs of the home.
There are almost a dozen variables that determine the ideal furnace for your home. Some of the factors include:
We encourage you to consult with an HVAC expert during your shopping process to make sure your home’s specific needs are accommodated. Here are a few of the topics an HVAC expert should be ready to discuss with you.
The type of energy source supplied to your home can immediately narrow your options. In Canada, most homes use natural gas, propane, or electricity, as their primary fuel source.
Space, room layout, ductwork, and insulation all affect the size of furnace your home needs. And getting the size right affects the equipment’s longevity, price and operational costs. A furnace that is too small will not adequately heat the home, whereas a furnace that’s too large will cycle on and off more frequently and result in faster wear and tear. In both cases, you end up wasting energy and won’t get your needs fully met.
A common misconception is that the size of the home is the only driving factor for properly sizing a furnace. Although this is relevant, calculating your furnace size based on that metric alone is an outdated practice. To accurately determine the right size of furnace for your home, a heat loss and heat gain calculation must be done by a licensed professional. This calculation evaluates the amount of heat that is gained by and lost from the home through three load calculations:
Design load calculations help determine the right furnace size by measuring the layout, orientation, insulation, and overall design of the home.
Extreme load calculations help ensure that the furnace can provide more heat than what is lost during extreme temperatures. This measurement can help determine whether more insulation is needed to prevent air leaks or whether to consider a larger capacity furnace.
Unlike extreme load calculations, part load calculations determine how your furnace performs during average temperatures. How many people live in the home, as well as micro design factors (ceiling height, windows, doors, landscaping, type of flooring and even the amount of appliances), are all factors that can determine the size of furnace required for your home.
All three calculations play a key part in determining the heat loss of your home.
The average cost for a new natural gas or propane high-efficiency furnace is $5,000 to $8,000. This price includes standard installation, at least a one-year warranty and all required licenses for installation. While it’s possible for a provider to install a furnace at a lower cost, there’s a higher likelihood that compromises were made with the components, workmanship, warranty coverage and post-installation support. There’s also a chance that the provider does not have the necessary insurance or licensing and certification.
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Many factors can determine where the right furnace for your home falls in this price range, including homeowner preferences. Two people can own identical homes, but if one chooses a standard furnace and the other chooses one with the least environmental impact, better air circulation, latest technology, or advanced settings, those two furnaces will significantly vary in cost.
For a general view, here are the factors that have an impact on the cost of a new furnace:
The following table breaks down the average costs for new air conditioners in Ontario.
After the initial purchase, the cost of running a furnace will vary depending on its type, efficiency, and heat source. Gas and propane will cost the least to run, where electricity and oil will be on the more expensive side. Each type of furnace has various efficiency ratings and the more efficient the furnace, the less it will cost to run over time. Read more about gas, oil, electric, and propane furnaces in the types of furnaces section.
Various government and utility provider incentives and rebates are available for upgrading the energy efficiency of your home. Ask us about the latest programs and how you may qualify.
The majority of providers offer a variety of ways to purchase your furnace. Make sure to ask about your options which may include making a one-time payment, deferred payments or financing programs.
If you want to avoid the upfront costs of buying and installing new equipment, consider renting a furnace. Our furnace rental option is the Enercare Advantage Program, which offers you zero up-front fees, affordable monthly payments, free maintenance once every two years and repair coverage by our licensed technicians. If you’re ready to schedule a free in-home assessment, contact us, and we’ll be in touch.
It is important to note that a furnace works with your home’s whole ventilation and cooling system, and we highly recommend updating your complete HVAC system at the same time to ensure the equipment is compatible.
Once the right furnace type, size and efficiency is decided, your HVAC expert will begin the installation process. Most furnaces can be installed in one day (including removing the previous heating system). However, depending on the amount of existing ductwork, the installation can take up to several days. Your contractor will test out your new heating system and provide you with information on operating and maintaining your equipment and how frequently to schedule tune-ups. Be sure to keep all manuals, warranty and paperwork on hand.
There are four main types of furnaces: natural gas furnace, propane furnace, electric furnace, and oil furnace. The most popular type of furnace for homes is natural gas. It’s important to find a furnace that matches your budget and desired efficiency level. The following section discusses the four types of furnaces that are common in Canada.
The most popular type of furnace for homes is a natural gas furnace. A gas furnace is the least expensive to operate run and costs $5,000 to $7,000+ to purchase upfront, depending on efficiency. Typically, a gas furnace operates at an AFUE of 95-98% which makes it the second most efficient out of the four.
Gas furnace components include the thermostat, electric controls, gas valve, burners, heat exchanger blower, ducts, and ventilation system.
Once the thermostat turns on the furnace, a gas control valve opens and regulates the fuel supply. A pilot flame or ignitor lights the fuel. This flame from the burner fires directly into the primary heat exchanger. The hot exhaust gases move through the internal heat exchanger passages heating the metal and exit through a vent pipe to the outdoors. A blower assembly is then activated and moves air over the hot external surface of the heat exchanger. This hot air is then circulated through the duct system within the home to heat each room.
If you are looking for a reliable source of fuel and have the space for a tank, consider a propane furnace. Generally, propane furnaces are the third most efficient opinion of the four types, ranging from an AFUE rating of 80%-94%. A propane furnace costs $5,000-$7,000+ upfront, depending on the size and efficiency.
The most common components of a propane furnace include a propane tank, heat exchanger, blower motor, and a pilotless igniter.
A propane furnace operates similarly to a natural gas furnace. Once the thermostat turns the furnace on, a gas control valve opens and a pilot flame ignites the fuel. This flame from the burner fires directly into the primary heat exchanger. The hot exhaust gases move through the internal heat exchanger passages heating the metal and exit through a vent pipe to the outdoors. A blower assembly is then activated and moves air over the hot external surface of the heat exchanger. This hot air is then circulated through the duct system within the home to heat each room.
An electric furnace relies on electricity as the heat source and is a reliable option for homes without natural gas supply. A typical electric furnace operates at an efficiency of 100% because there are no combustion by-products and can cost anywhere from $1,000 to $3,000 upfront. Because the cost of electricity is higher, these types of furnaces are the second most expensive to operate.
The main components of an electric furnace include electric elements, circuit board, and blower assembly.
Once the thermostat activates the furnace, electricity is sent to the furnace’s electrical elements. These elements are long wires wound into tight coils mounted inside of the furnace cabinet. Due to the wire material quality of these heating elements, these elements can operate at extremely high temperatures in excess of 2,000oF. These electrical elements are designed similarly to a common hair drier. A blower assembly in the furnace is then turned on and moves air past the hot electrical elements. The air picks up the heat from these hot electrical elements and is then circulated through the duct system within the home to heat each room.
Oil furnaces are sometimes used for homes in areas where gas services are not available. They are not as common as natural gas furnaces. An oil furnace has an AFUE rating of around 80-90% and typically costs anywhere from $3,000+.
The main components of an oil furnace include an oil burner assembly containing a blower, oil pump, oil nozzle and ignition electrodes, heat exchanger, circuit board, ventilation pipes and blower assembly to circulate air. If you are considering an oil furnace, you must have an oil storage tank and a contract with a company that delivers heating oil.
Once the thermostat activates the furnace controls, the oil burner assembly is activated and oil and air are sent to the burner head. The oil is then ignited by the ignition electrodes. This flame from the oil burner fires directly into the primary heat exchanger. The hot exhaust gases move through the internal heat exchanger passages heating the metal and exit through a vent pipe to the outdoors. A blower assembly is then turned on and moves air over the hot external surface of the heat exchanger. This hot air is then circulated through the duct system within the home to heat each room.
A heat pump is an alternative and increasingly popular method of heating your home. While a furnace generates heat by burning fuel, a heat pump moves heat from one location to another. Heat pumps are typically more efficient and environmentally friendly than a furnace, but they may not work as well in very cold temperatures.
These are some of the main pros and cons to consider when deciding between a heat pump and a furnace for your home.
The choice between a heat pump and a furnace will depend on your specific needs, budget, and climate. If you’re unsure between the two options, contact our expert team to determine the best fit for your home.
The most common problems with a furnace are typically related to lack of maintenance. Without regular furnace filter and blower maintenance, the heat exchangers and blower motors will have a shortened life expectancy. Flame sensors also require periodic cleaning and certain types of igniters can burn out due to normal use. In any case, a trained and qualified HVAC technician will be able to diagnose and fix the problem as quickly as possible.
Other problems people experience with their furnace include:
If air vents are closed in the home, the temperature in the furnace can build up to be higher than normal and cause the furnace to shut off to protect itself.
The average furnace lasts about 15 years. If you are experiencing poor performance or hear unusual noises, it’s likely time for a replacement.
Older furnaces have thermocouples or thermopiles. This is a safety device that helps detect whether your pilot light is on or not. It ensures that the gas valve is not sending gas into a furnace without a working pilot light. Because these devices are in direct contact with the pilot flame continuously, they can burn out and cause the furnace not to provide heat.
If a technician detects a hazardous issue with your furnace, they will assign a product warning tag to your equipment known as a red tag. If you receive a Type A red tag, it indicates an immediate issue with your equipment and your natural gas will be shut off to avoid carbon monoxide leaks and other dangers. A Type B red tag marks any issue that does not pose an immediate threat and requires the homeowner to repair or replace the equipment within 30 days.
Whether you get a Type A or B red tag, your equipment is not safe to operate and will require repair or replacement depending on the severity of the issue and age of the furnace.
A faulty furnace in the middle of winter can make your home uncomfortable and also be expensive to repair. Before you call a service technician about your unit, there are a few basic diagnostic steps you can perform.
It is important to note that attempting to fix a furnace is extremely dangerous and needs to be done by a trained and licensed professional. We strongly advise you to consult a licensed HVAC technician for any maintenance and repair work.
In cases where the furnace will not turn on, be sure to:
If you hear loud bangs or smell gas, do not operate electrical components. Leave the home immediately and call your gas company. They’ll send an expert to evaluate the risk of a gas leak. Afterward, you can get in touch with an HVAC expert for furnace repairs or replacement.
A homeowner most commonly notices the amount of noise their furnace makes after they first move into a new home. This is often because they’re comparing it to their old furnace. One possible reason for the difference is the type of fan motor the furnace has. A single-stage fan only blows at a high setting and will be noisier than a multi-stage or variable-stage fan. The furnace may also be improperly sized for the home causing it to run all the time. Or your furnace may be working harder because of a clogged furnace filter. Start with changing your furnace filter and if the noise persists, call an expert to assess the furnace.
If there’s not enough heat in the home, always check your furnace filter first, ensure your return vents are not obstructed, that furniture isn’t blocking any air vents and that the dampers are open. Make sure the thermostat is reading correctly by comparing it to another device at the point of your thermostat. If these steps were taken and you’re still having a problem, an HVAC professional will be able to help figure out the cause.
A frequent cause of the furnace shutting off is a dirty filter. After replacing the furnace filter, if the problem continues, then call a professional. This is a strong indicator that there’s a failing part in the furnace.
After the furnace installation, a licensed technician should perform quality and cleaning checks on all major components every 1-2 years to ensure that the unit performs up to the manufactures standards. The furnace’s filters need to be changed once a month or less, depending on the unit’s efficiency. Enercare offers a Furnace Protection Plan with Maintenance that includes same-day service on breakdowns, unlimited service calls, parts and labour coverage and 24/7 customer service.
We suggest getting your furnace inspected and maintained in the summer before the weather cools down.
We hope this furnace buyer’s guide helps your purchase a furnace that will fit your needs. If you have any additional questions about the types of heating solution best fits your needs, please feel free to contact our sales team.
To book a free in-home HVAC assessment, get advice on buying a furnace, or have a technician look at your existing equipment, you can reach out to our team at 1-855-514- or fill out the following form to request a free in-home assessment and price quote.
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