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Old 02-18-2020, 01:26 PM   #1
Junior Member
Brand: Thor Motor Coach
Model: Four Winds 31W
State: Ohio
Posts: 10
THOR #13951
CheapHeat add-on mod

Reaching out to see if anyone has installed the CheapHeat furnace add-on to a Thor coach. Especially interested in the FourWinds 31W but any experience will be helpful. Have been researching the unit and finding potential certified installation techs (way beyond my DIY capabilities) but now looking for experience input before I go any futher. Much appreciated.

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Old 02-18-2020, 02:49 PM   #2
Senior Member
Brand: Keystone
Model: Sprinter
State: Florida
Posts: 1,422
THOR #15553
Not worth the $$$. 1800 watt is nothing more than a blow dryer and is gonna use 1/2 of a 30 amp service! Is a blow dryer gonna heat your RV?????? The 5000 Watts is gonna require full 240 volts which is not accessible in 90% of RV's.
2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
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Old 02-18-2020, 02:57 PM   #3
Senior Member
Brand: Thor Motor Coach
Model: Four Winds 31W
State: Michigan
Posts: 542
THOR #9522
We had two 1500 watt heaters in our 31W last Halloween. At 40F overnight, the propane furnace kicked on anyway. The heaters couldn't maintain 60F when it was below 40 outside.
Pete and Carolynn Foss from Oxford, MI
2018 Four Winds 31W
1999 Aero Cub F-21 trailer
1977 Tioga 24 foot RV
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Old 02-18-2020, 03:55 PM   #4
Senior Member
ducksface's Avatar
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,340
THOR #13932
I don't think anyone who has thought twice, has installed one.
I've done a lot of research on them and I can't begin to understand their use/value ratio.

It is, literally, a $12 milk house heater cut into your existing vent system.

I'm not saying people don't buy them. I'm saying the decision to buy one is of the same level as a $3,000 steering damper.
Below is a link to most of my modifications either accomplished or pending.

Click on my pictures then click the pop-up for a full screen zoomable picture.
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