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OT: Propane Tank Top Heater
Posted by: gmgmtl ()
Date: January 12, 2018 07:39PM

It has been cold here, I usually use the kerosene torpedo heater to get the garage warm, but it is too noisy. I saw this tank top heater on sale and ordered two. One was $88 and second one was only $31 more.

When they arrived I put one together, the instructions said use only with a 20 lb tank and I had a 100 lb tank.

Online research was inconclusive, some sites said that there was no difference in pressure in 20,30,40 up to 100 lb tanks, other sites disagreed.

Any body here use tank top heaters on a 100 lb tank or can shed light on the subject.

I prefer to be safe and not to be the lead on the 10 o'clock news.
GMoore

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Re: OT: Propane Tank Top Heater
Posted by: MattNall ()
Date: January 12, 2018 08:01PM

Propane is propane... blowoff valves are 275 psi REGULATOR throttles the pressure down to about 3" H2O

I have one on a 25 gal. tank





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Re: OT: Propane Tank Top Heater
Posted by: gmgmtl ()
Date: January 12, 2018 08:05PM

Thanks Matt

Gary Moore near KC Missouri

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Re: OT: Propane Tank Top Heater
Posted by: Lane66m ()
Date: January 12, 2018 08:24PM

Since the tank only has a max pressure blow-off (i.e. being exposed to excessive heat), the tank top unit's regulator must control the pressure it is using. I would only open valve 1/2 turn and let it run. Any issue and you can quickly close the valve. I have 3 of the units, 2 singles and one dual head. No issues running my single on the 100 lb tank I have. But this year I am trying to get a new floor standing unit working. These tank tops are staying on the 20 lb tanks.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1966 Corsa Turbo Coupe, 180 hp 4 Spd
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2015 GMC Sierra SLT Crew Cab
1968 Camaro SS Coupe 350 CI 295+ HP PG
1947 Farmall A tractor 15 hp





Edited 1 time(s). Last edit at 01/12/2018 08:28PM by Lane66m.

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Re: OT: Propane Tank Top Heater
Posted by: joelsplace ()
Date: January 12, 2018 09:50PM

Matt is correct. The size of the tank has nothing to do with the pressure that propane turns from liquid to gas. It's simple physics. Only temperature changes the pressure. The only reason I can think of that they might specify a tank size is the outlet connector is different on different tanks. If it will screw on it will work. If it doesn't fit get an adapter. A 1lb, 20lb and 250lb all have different connectors. I fill my 40, 20 and 1lb tanks from my 500.

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Re: OT: Propane Tank Top Heater
Posted by: Chilly Willy ()
Date: January 13, 2018 03:49AM

Hopefully it has a CO cutoff. if you’re replacing a Kerosene turbo and survived you should be ok 😉
now that I think of it, I should get a CO monitor in my garage.




The Corvair, Keeping Nader Notorious winking smiley


Will
Northern California

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Re: OT: Propane Tank Top Heater
Posted by: gmgmtl ()
Date: January 13, 2018 06:47AM

Thanks Matt, Al and Will for the advice. I have a CO monitor in the shop, which I haven't set off yet.
GMoore

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