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Propane Heater #163386
05/07/07 01:25 PM
05/07/07 01:25 PM
K
Ken Hackbert  Offline OP
Junior Member
Joined: Mar 2005
Posts: 4
Missouri
Customer has a propane heater he wants installed in a well house which has non-explosion proof pressure pump motors and related exposed starters relays etc.
Need help in explaining to him this is a bad idea.

Work Gear for Electricians and the Trades
Re: Propane Heater [Re: Ken Hackbert] #163391
05/07/07 02:44 PM
05/07/07 02:44 PM
W
walrus  Offline
Member
Joined: Jul 2002
Posts: 680
Bangor Me. USA
What kind of propane heater?? Wouldn't using manufacturers instruction be the way to discourage??They must have clearances from combustables,etc.

Re: Propane Heater [Re: walrus] #163446
05/08/07 09:50 AM
05/08/07 09:50 AM
K
Ken Hackbert  Offline OP
Junior Member
Joined: Mar 2005
Posts: 4
Missouri
The problem is potential fumes escaping from a wall mounted propane heater within 10 feet of pressure pumps and elecrtical controls. None of which are explosion proof. My concern is we will blow up the well house if fumes are present and a pump starts up. A pump starts and stops around every two minutes. Tried to tell them they would be better off to use a portable generator and a small electric heater if there is ever a power outage.

Re: Propane Heater [Re: Ken Hackbert] #163447
05/08/07 10:14 AM
05/08/07 10:14 AM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,306
Estero,Fl,usa
Propane appliances are used in dwellings all the time. I don't see the problem if it is listed and installed to code.


Greg Fretwell
Re: Propane Heater [Re: gfretwell] #163448
05/08/07 10:26 AM
05/08/07 10:26 AM
M
mikesh  Offline
Member
Joined: Jun 2006
Posts: 613
Victoria, BC, Canada
How is this different for a central unit that is natural gas or propane fueled or water heaters or fire places. Lots of gas fired appliances are approved for domestic use and do not require explosion proof wiring. The only classified componenet in gas systems is the pressure regulator vent. Natural gas installs require a 1 meter clearance and propane needs 3 meters from any spark producing device like a switch or outlet.

Re: Propane Heater [Re: mikesh] #163453
05/08/07 11:59 AM
05/08/07 11:59 AM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,306
Estero,Fl,usa
The tank and regulator has to be outside, 10' from anything electrical as far as I know. That was what they told me when we put in the 150 gal tank for the pool heater.


Greg Fretwell
Re: Propane Heater [Re: gfretwell] #163455
05/08/07 01:15 PM
05/08/07 01:15 PM
G
geoff in UK  Offline
Member
Joined: Dec 2002
Posts: 193
UK
I would share Ken's concerns. Propane, unlike natural gas, is heavy and any leakage will tend to collect at the lowest point.
Get the right air mix plus a spark and it could spoil your whole day! I would suggest seeking advice from a gas appliance installer.

Re: Propane Heater [Re: Ken Hackbert] #163463
05/08/07 03:18 PM
05/08/07 03:18 PM
L
LarryC  Offline
Member
Joined: Jul 2004
Posts: 783
Winchester, NH, US
Stepping bsck a little, why does he want a heater in there? Is this a decorative shelter for a submersible well pump? Is there any significant chance of a waterline freezing?

Re: Propane Heater [Re: LarryC] #163525
05/09/07 04:18 PM
05/09/07 04:18 PM
K
Ken Hackbert  Offline OP
Junior Member
Joined: Mar 2005
Posts: 4
Missouri
LarryC
The chance of freezing is remote. Many well houses in the Branson MO area don't even have electric heaters. The well house contains several pressure tanks,two pressure pumps, the well and a chemical tank to service a 60 home subdivision. Old timers in the area think the idea is stupid. I feel if the board wants to be protected in case of a power failure a portable generator with a electric heater is a safer way to go. The propane gas leaking is a small possibility, but why take it. One electrican said it's a good idea if you want to blow the roof off. There are homes in close proximity to the well house along with residents walking by on a regular basis. The Board dosen't even know if our insurance will cover explosions. Resort owners don't even turn on their well house electric heaters as they feel it is a waste of money during the winter.

Re: Propane Heater [Re: Ken Hackbert] #163526
05/09/07 04:39 PM
05/09/07 04:39 PM
W
walrus  Offline
Member
Joined: Jul 2002
Posts: 680
Bangor Me. USA
Not sure how big this building this but if clearances can be met and the heater can be put in to code. I don't see a problem. If propane explosions are a big worry because of non exp prf enclosures, motors, etc. Why don't propane heated homes explode on a regular basis??


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