Tube Furnace
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 Lindberg Tube Furnace 54352 W Controller $500.00 Time Remaining: 2d 12h 5m |
 LINDBERG 54331 S 1000C LABORATORY SOLID TUBE FURNACE HEAT HEATER CONTROLLER $299.99 Time Remaining: 4d 12h 37m Buy It Now for only: $299.99 |
 1200C 60OD Lab Horizontal Vacuum Tube Furnace Heater $4,990.00 Time Remaining: 22d 4h 31m Buy It Now for only: $4,990.00 |
 1200C 100OD Lab Horizontal Vacuum Tube Furnace Heater $6,290.00 Time Remaining: 4d 6h 54m Buy It Now for only: $6,290.00 |
 1400C 60mm OD Lab Horizontal Vacuum Tube Furnace Heater $5,990.00 Time Remaining: 22d 4h 32m Buy It Now for only: $5,990.00 |
 6193 BLUE M TUBE FURNACE END INSULATION $27.50 Time Remaining: 27d 8h 21m Buy It Now for only: $27.50 |
 6191 BLUE M TUBE FURNACE END INSULATION $27.50 Time Remaining: 27d 8h 21m Buy It Now for only: $27.50 |
 6197 BLUE M TUBE FURNACE END INSULATION $27.50 Time Remaining: 27d 8h 21m Buy It Now for only: $27.50 |
 6194 BLUE M TUBE FURNACE END INSULATION $27.50 Time Remaining: 27d 8h 21m Buy It Now for only: $27.50 |
 Mellen PS305 Tube Furnace w Honeywell 3 Zone Power Supply WORKING $699.99 Time Remaining: 6d 14h 44m Buy It Now for only: $799.99 |
 Lindberg Blue M TF55035A 55035 Mini Mite Laboratory Tube Furnace 1 Dia $1,249.99 Time Remaining: 17d 11h 18m Buy It Now for only: $1,249.99 |
 Barnes Engring 1000C Dental Tube Furnace MNl 11 210 2 $500.00 Time Remaining: 9d 13h 29m Buy It Now for only: $500.00 |
 LINDBERG BLUE M FURNACE BF51732C 1200 C TUBE OR BOX OVEN LIGHTLY USED WORKING $1,299.00 Time Remaining: 6d 16h 36m Buy It Now for only: $1,299.00 |
 6195 BLUE M TUBE FURNACE INSULATION END $27.50 Time Remaining: 27d 8h 21m Buy It Now for only: $27.50 |
 Lindberg 55122 1 1200 C Tube Furnace Controller 58114 $1,161.17 Time Remaining: 19d 11h 49m Buy It Now for only: $1,161.17 |
 6195 BLUE M TUBE FURNACE END INSULATION $27.50 Time Remaining: 4d 9h 21m Buy It Now for only: $27.50 |
 Tube Furnace Electro Heat Systems Lab 18 x 2 1 4 Nice $975.00 Time Remaining: 18d 17h 39m Buy It Now for only: $975.00 |
 UNUSED QUARTZ NITRIDE TUBE FURNACE SLED CARRIER $695.00 Time Remaining: 23d 13h 45m Buy It Now for only: $695.00 |
 USED VALPLAST RESIN INJECTOR SYSTEM PRESS FURNACE FLASKS HANDLE AND TUBE O $800.00 Time Remaining: 2d 16h 39m |
 Kanthal AB Superthal 2 Tube Furnace No Element As Is $1,295.00 Time Remaining: 16d 12h 30m Buy It Now for only: $1,295.00 |
 Lindberg 54552 V High Heat Lab Oven Tube Furnace Kiln $849.99 Time Remaining: 16d 19h 49m Buy It Now for only: $849.99 |
 TUBE FURNACE QUARTZ NITRIDE WHEELED CARRIER SLED HOLDER 90mm Wide X 53 1 2 $695.00 Time Remaining: 23d 13h 44m Buy It Now for only: $695.00 |
 7 X 150mm ID GE 214LD LTO FUSED QUARTZ RESEARCH TUBE FOR TUBE FURNACE $995.00 Time Remaining: 23d 13h 44m Buy It Now for only: $995.00 |
 MRL Industries 4 Tube Diffusion Furnace System Model 1424 Very Nice Units $85,000.00 Time Remaining: 15d 5h 12m Buy It Now for only: $85,000.00 |
 150mm OD X 86 L QUARTZ NITRIDE TUBE FOR TUBE FURNACE $995.00 Time Remaining: 23d 13h 45m Buy It Now for only: $995.00 |
 Deltech Tube Furnace DT33 HT 1 Y550 1800C $1,999.99 Time Remaining: 19d 13h 24m Buy It Now for only: $1,999.99 |
 Furniture Kit for Tube Furnace Oven KILN LECO Probably $15.00 Time Remaining: 3d 16h 30m |
 Deltech Tube Furnace DT31 HT 511 Y550 1800C $2,499.99 Time Remaining: 19d 13h 5m Buy It Now for only: $2,499.99 |
 Blue M STF54659C 1500C 3 Zone Tube Furnace+Controller Console Lindberg 240V $3,999.99 Time Remaining: 13d 44m Buy It Now for only: $3,999.99 |
 Compact Tube Furnace 2 OD 1600 C Max with Tube $5,250.00 Time Remaining: 25d 21h 1m Buy It Now for only: $5,250.00 |
 1200C 80OD Lab Horizontal Vacuum Tube Furnace Heater $5,490.00 Time Remaining: 4d 6h 51m Buy It Now for only: $5,490.00 |
 Vertical Lab Split Vacuum Tube Furnace Tube Heater $5,990.00 Time Remaining: 14d 7h 3m Buy It Now for only: $5,990.00 |
 Thermco 100278 Tube Furnace 4 Stack Single Carrier w Controller $590.75 Time Remaining: 1d 8h 19m Buy It Now for only: $590.75 |
 Sola Basic Lindberg Type 59344 Tube Furnace Controller Type 54032 Tube Furnace $1,999.95 Time Remaining: 18d 10h 50m Buy It Now for only: $1,999.95 |
 1600C 60mm OD Lab Horizontal Vacuum Tube Furnace Heater $8,590.00 Time Remaining: 27d 17h 29m Buy It Now for only: $8,590.00 |
 Furniture Sagger for Tube Furnace Oven KILN LECO Probably $15.00 Time Remaining: 3d 16h 34m |
 1400C 80mm OD Lab Horizontal Vacuum Tube Furnace Heater $6,490.00 Time Remaining: 9d 18h 51m Buy It Now for only: $6,490.00 |
 Supelco 2 3800 Carrier Gas Purifier Tube Furnace $384.72 Time Remaining: 21d 9h 21m Buy It Now for only: $384.72 |
 THERMCRAFT 6 TUBE FURNACE $5,495.00 Time Remaining: 1d 7h 52m Buy It Now for only: $5,495.00 |
 Compact RTP Tube Furnace with 4 Quartz Tube $9,150.00 Time Remaining: 19d 22h 33m Buy It Now for only: $9,150.00 |
 Split Tube Furnace with Vacuum Flanges and OD100mm Quartz Tube $4,480.00 Time Remaining: 19d 18h 6m Buy It Now for only: $4,480.00 |
 Supelco 2 3800 Carrier Gas Purifier Tube Furnace 2 $391.66 Time Remaining: 21d 9h 44m Buy It Now for only: $391.66 |
 Varian GTA 100 Lab Graphite Tube Atomizer Furnace PARTS $299.99 Time Remaining: 26d 19h 9m Buy It Now for only: $299.99 |
 Compact Split Tube Furnace with Vacuum Flanges 2 or 1Quartz Tube $2,550.00 Time Remaining: 20d 21h 42m Buy It Now for only: $2,550.00 |
 GOOD Tube Furnace Oven KILN 55x135 LECO FR1A612 TESTED NO RESERVE 2 $100.00 Time Remaining: 3d 16h 35m |
 Burell TF 2 9 Tube Furnace $999.99 Time Remaining: 10d 4h 30m Buy It Now for only: $999.99 |
 oxidation furnace steam generator Glass tube Laboratory $499.99 Time Remaining: 12d 14h 12m Buy It Now for only: $499.99 |
 Compact Split Tube Furnace with Vacuum Flanges $2,550.00 Time Remaining: 21d 22h 23m Buy It Now for only: $2,550.00 |
 Rotary Tube Furnace with 90mm OD Quartz Tube 1200C Max $11,000.00 Time Remaining: 18h 26m Buy It Now for only: $11,000.00 |
 Two Zones Rotary Tube Furnace with 310A Alloy Tube $23,500.00 Time Remaining: 18h 58m Buy It Now for only: $23,500.00 |
 Two Zone Rotary Tube Furnace with 4OD Quartz Tube1200C $14,500.00 Time Remaining: 18h 43m Buy It Now for only: $14,500.00 |
 High Pressure Tube Furnace 5Mpa 1100 HPT 1100X $20,750.00 Time Remaining: 8d 16h 10m Buy It Now for only: $20,750.00 |
 Furniture Sagger for Tube Furnace Oven KILN LECO Probably $15.00 Time Remaining: 3d 16h 37m |
 Vacuum Sealing Assembly for 50 mm dia Tube Furnace with Valve Vacuum Meter $475.00 Time Remaining: 21d 22h 57m Buy It Now for only: $475.00 |
 Split Vertical Tube Furnace with 5 Diam Quartz Tube $7,050.00 Time Remaining: 13d 23h 22m Buy It Now for only: $7,050.00 |
 Fiber Tech Laboratory Tube Furnace 2 Zone Barnstead Thermolyne Blue M $2,995.00 Time Remaining: 23d 10h 8m Buy It Now for only: $2,995.00 |
 Vacuum Sealing Assembly for 100 mm dia Tube Furnace with Valve Vacuum Meter $950.00 Time Remaining: 21d 23h 16m Buy It Now for only: $950.00 |
 Split Tube Furnace with Vacuum Flanges and OD80mm Quartz Tube $3,760.00 Time Remaining: 26d 17h 22m Buy It Now for only: $3,760.00 |
 Vacuum Sealing Assembly for 80 mm dia Tube Furnace with Valve Vacuum Meter $560.00 Time Remaining: 21d 23h 10m Buy It Now for only: $560.00 |
 Quartz Tube Furnace 80mm OD quartz with High Vacuum $37,500.00 Time Remaining: 26d 23m Buy It Now for only: $37,500.00 |
 Three Zones Split Tube Furnace with Quartz Tube 80mm and Vacuum sealing Flanges $6,550.00 Time Remaining: 2d 22h 45m Buy It Now for only: $6,550.00 |
 GOOD Tube Furnace Oven KILN 6x12 LECO FR1A612 TESTED NO RESERVE 1 $100.00 (1 Bid) Time Remaining: 3d 16h 38m |
 RTP Tube Furnace with 4 Quartz Tube High Vacuum Sytem $32,500.00 Time Remaining: 25d 22h 17m Buy It Now for only: $32,500.00 |
 Three Zones Tube Furnace with Vacuum Pump for CVD $43,500.00 Time Remaining: 26d 21h 9m Buy It Now for only: $43,500.00 |
 Used Lindberg Tube Furnace Type M 3060 VS $4,995.00 Time Remaining: 17d 4h 16m Buy It Now for only: $4,995.00 |
 Varian GTA 96 PLUS Graphite Furnace Tube Atomizer $3,999.00 Time Remaining: 17d 6h 30m Buy It Now for only: $3,999.00 |
 Used Lindberg Tube Furnace Type 54476 VS $4,995.00 Time Remaining: 15d 7h 36m Buy It Now for only: $4,995.00 |
 MELLEN TUBE FURNACE 14 AND 3 DIAMETER $499.99 Time Remaining: 25d 2h 27m Buy It Now for only: $499.99 |
 BLUE M 58114 P 1200 DEG C TUBE FURNACE CONTROLLER $495.00 Time Remaining: 17d 11h 7m Buy It Now for only: $495.00 |
Tube Furnace
Save on Heating Costs With a New, Energy Efficient Furnace
Most older furnaces are low- or mid-efficiency furnaces. Low-efficiency furnaces have an Annual Fuel Utilization Efficiency, or AFUE, of 79% or lower (with models older than 20 years likely considerably lower), which means they convert 79% or less of the energy in the fuel they consume, into heat that actually heats your home (the rest goes out the chimney or exhaust pipe. Mid-efficiency furnaces have an AFUE of 80 to 83%, while high efficiency furnaces are generally from 90 to 97% efficient. There is a gap between mid-efficiency and high-efficiency furnaces because the technology changes from mid- to high-efficiency, from a standard to a condensing furnace (where the water vapor is condensed out of the exhaust to recapture the heat in it).
If you are looking for a new furnace, make sure to figure out the total cost of ownership over the life of the unit (typically 20 years or more). You will spend a fair bit more up front for a high efficiency model, but you will save a lot of money on annual heating costs, especially as natural gas prices are likely to climb much higher in coming years, compared to their fairly stagnant price through the 90's and much of the first decade of this century.
For example, when I bought my 94% efficient furnace in 1998, I paid $2,800, while an 80% efficient model would have cost just $1,500. Why spend the extra $1,300 for an extra 14% efficiency? There are three main reasons.
1. Cutting your CO2 emissions: if you are concerned about the problem of climate change - as everyone should be - buying the most energy efficient furnace you can get will cut your CO2 emissions considerably.
2. Saving on fuel costs: natural gas prices have been stable for years, but a number of factors are contributing to increased scarcity of natural gas, including massive consumption of natural gas for the Alberta tar sands project, increased use of natural gas by industry, and increased reliance on natural gas for peak load electrical generation by utilities.
3. Saving on electricity costs: a typical high efficiency furnace uses about one fifth as much electricity as a mid- or low-efficiency model.
In addition, depending on where you live, you may qualify for government tax credits or energy efficiency rebates when you install an ENERGY STAR or high efficiency model.
An energy saving furnace doesn't vent up your chimney. High efficiency furnaces extract so much of the heat out of the exhaust gases, that they vent out the side of your house through PVC tubing; you can feel the exhaust air coming out and it's hot, but not hot enough to burn. High efficiency furnaces also have an air intake tube, which is key to their efficiency: they do not draw interior air into the sealed combustion chamber, which prevents the furnace from sucking cold air into the house through drafts such as cracked window panes or poorly sealed doors.
If you're considering buying an energy saving furnace I would recommend starting with a list of the most efficient furnaces in the BTU category you need. Brands such as York, Carrier, Bryant (made by Carrier) and Air-Ease have some very high efficiency models. For a full list, visit the ENERGY STAR website, and check in their heating and cooling section for a complete list of ENERGY STAR qualified furnaces.
One thing to note is that the brand of the furnace you buy matters less than the manufacturer. Some brands, such as Frigidaire, Kenmore, and Maytag, do not make furnaces themselves, instead they repackage furnaces made by actual furnace manufacturers. What sets a Maytag model apart from the exact same furnace branded by someone else? Nothing, in terms of quality. The only difference is in how easy it is for salespeople to market the product, since people place unwarranted faith in a brand name. If the warranty is the same and the product is the same, pay no attention to the brand name. You can usually tell when two brands are both the same furnace when the efficiency, BTU capacity, and model number are all the same or the model number differs only by a letter or two.
There are definitely some brands that have built a solid reputation for reliability, but studies suggest that in over 80% of cases where unscheduled maintenance is required on a furnace or air conditioning system, at least part of the problem originated with a faulty installation, rather than with the quality of the brand purchased. That's why it's crucial to find a top-notch HVAC contractor.
Look for an HVAC company with a solid reputation, who has installed the furnace you're considering buying many times. Going for a bigger operation - at least a dozen employees - is usually a good bet, as companies don't get that big by running a shoddy operation. Look for awards or customer reviews or customer references, and make sure you have a professional, courteous, and trustworthy salesperson. Invite them into your home to do an assessment, and check that they understand your concerns with energy efficiency, understand the relative efficiency of different models and brands, and do not slam the competition. If a salesperson tries to convince you that energy efficiency shouldn't be a major consideration, or they don't understand the issues or the math, find another company.
Also be wary of someone who focuses on low price. You want quality and you need to be willing to pay for it. Ensure warranty and service information is agreed on from the outset; you need at least a one-year warranty and there should be the option to pay for an annual service contract; find out the cost per year (for current customers) for each of the first, fifth, tenth, and twentieth years (as service prices rise as the equipment ages).
Your contractor should be willing to remove all equipment that is no longer needed, and dispose of it at no extra cost to you, and at the time of installation. You don't want to be left with that mess.
Don't forget to ask friends and neighbors for references, since companies. Companies that grow their business through referrals are obviously doing quality work. Those that grow their business through big advertising budgets may not be.
You should ask your HVAC salesperson to size the equipment you'll need. Typical BTU ratings for home use are 40,000 BTU for smaller homes or warmer climates, to 120,000 BTU for a large home in a cold climate. A competent HVAC contractor will do a load calculation for your home based on interior area, insulation levels in walls and attic, and the local climate. Some contractors will just do a ballpark estimate in their heads - which may be fine if they're very experienced. Others may do the work on paper or with specialized software. It's important that you trust what they've come up with. For instance, most of the contractors I interviewed wanted to give me a 60,000 BTU furnace for my 1,300 square foot home. But the one I eventually chose told me to go with their 40,000 BTU high efficiency unit, because it was 2% more efficient than their ultra high efficiency 60,000 BTU model and because they said there would be very few times when I'd need the full 60,000 BTU - namely extremely cold nights, of which we only get two or three a year. Contractors don't want to be accused of underestimating the required capacity, so they may overestimate to avoid complaints when you're freezing during a cold snap. In our case, the lower capacity furnace has never had trouble keeping us warm on even the coldest nights.
If you're going to the expense of installing an energy saving furnace, make sure the installation comes with a programmable thermostat. Many high efficiency furnaces require a specialized thermostat that comes as part of the installation. If yours doesn't, get a standard programmable thermostat installed as part of the deal; it should support at least four different temperature settings for each day of the week. Using a programmable thermostat can further increase the savings you derive from an energy efficient furnace - it can make a difference of up to 10% on your fuel costs.
You can buy inexpensive disposable furnace filters at most building supply stores. Such filters typically need to be replaced once a month, more often if you have dust or pet hair problems. A more convenient choice is a whole house pleated filter that consists of fanfold filter paper enclosed in a large boxlike structure; while it costs quite a bit more, it only needs to be changed once a year and filters out much finer particles. Whole house filters also provide less air resistance to the furnace fan, making it more efficient.
You should also have a humidifier installed as part of your new furnace. Adding humidity to the hot air coming from your furnace improves comfort, making the indoor air feel warmer (that's why in cities like Toronto we have a Humidex advisory -- the added humidity makes hot air feel even hotter). A humidifier in your furnace will not only improve comfort, but reduce the chance of your getting colds, as you won't have your lungs and airways dried out by the heated air.
An energy saving furnace should allow you to enjoy comfortable temperatures without your spending a fortune on natural gas. By choosing a high efficiency model, a competent HVAC contractor, and the right filtering, thermostat, and humidifier options, you'll experience quiet comfort at a lower cost, while cutting greenhouse gas emissions as well.
Robin Green is the owner of Green-Energy-Efficient-Homes.com, a website dedicated to helping people save energy on heating, cooling, lighting, and other energy uses in their homes. For more on cutting your heating costs, see his website page Energy saving furnace.
About the Author
I can find where the pilot light should be on my furnace I followed the tubes, but there is no hole to light.
Three long tubes, I assume are the burners.
Tubes end where the pilot light should be on center tube, but no hole to put match.
Older Honeywell furnace
Most gas companies will light a pilot for you upon request. I have lived all over the US and it has never cost me a cent.
I am certain I could light it if I were there and it is working correctly but I hesitate to offer any advice as inappropriate handling of a gas appliance can cause catastrophic things to happen. Anything from a successful light trough blowing the house up is possible.
Just call the gas man.
Lindberg Tube Furnace Type 54541 #8021