Question about Heating & Cooling
Type of Flue pipe for Nordyne Intertherm mobile home gas furnace The furnace is being installed into a doube-wide mobile home. It's missing the flue pipe(s) and roof cap(s) and I don't know what kind I need to buy. I measured the rims coming out of the furnace: the outer flue piping diamerter is 8" and the inner piping diameter is 5". Does the pipe have to be insulated, or is it just two pipes with one inside the other, with roof caps? What about the part going through the actual roof? I can't find anything about flue piping for mobile home gas furnaces on the web. There are no Intertherm Nordyne dealers in Alaska, and the company's website only has a "dealer locator" which is worthless, or it says a customer can WRITE them and gives their snail mail address -- unbelievable. I can't afford a "heating company installation" with all their extra fees and mark-ups. I don't know where to buy it either. If I could buy the flue piping and roof caps, I could get someone in the mobile home park to install it.
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Posted on Jan 02, 2017
SOURCE: Dayton Fuel Trimmer Shop Heater
flue diameter is 4 inch
Propane Unit Heater, BtuH Input 30000, Full Load Current 2.1 Amps, Gas Inlet 1/2 Inch, Flue Diameter 4 R,V, Motor Power Rating 1/30 HP, Free Air Flow 700 CFM, Height 27 1/2 Inches, Depth 27 5/8 Inches, Width 14 Inches, OC Mounting 8 5/8 Inches, 115 Volts, Energy Saving
Posted on Nov 21, 2007
davcr- try using a hairdryer on the pipe. and next time put an anti-seize oil on the pipes where they go together. ;)
Posted on Nov 17, 2008
generally speaking a sealed combustion system is inherently more safe than a system that draws it's combustion air from it's ambient location. however, it cannot be considered 100% safe in a potentially hazardous location. The actual system that would be used in a "code compliant" installation would be a 100% outside air unit.
That being said, you can install this in a garage, the vent that you are referring to (if it is a standard mobile home system) is generally directly above the unit and usually no longer than about five feet. It also requires a listed and labeled termination "cap" If you install 90 degree angles or extend the vent too far you will have issues with condensation in the piping that will cause the pipe/ heat exchanger to fail prematurely.
If the system is a 90+ efficeint unit then the PVC venting is generally allowed to be about 30 feet long, with a 1/4 inch per foot pitch back to the unit for condensation, also the general mfg. instructions allow either 2- 90 degree or 4 45 degree fittings in the line. hope this helps
Posted on Nov 07, 2009
Testimonial: "Thank You"
SOURCE: I had my original "low"
Hello there, Usually the flue size is determined by the BTU which is generated by the unit. Considering that your unit produces between 35,000 and 40,000 BTU per hour the 2" Flue is okay. Although if you can replace it a 3" will do the job better but the 2" will not cause any harm if left in place as the quantity of BTU generated is equivalent to 2" of flue.
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Posted on Aug 13, 2011
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