Outdoor Wood Furnace Info

Outdoor Furnaces - Manufacturers WITH EPA-Certified Models => Portage & Main => Topic started by: mootsko on March 16, 2015, 10:28:16 AM

Title: Grounding?
Post by: mootsko on March 16, 2015, 10:28:16 AM
How many of you out there have your stove grounded to a grounding rod?
It's the my first winter with the 2840 and looking over my owners manuel I see there is a bolt on the tank to ground it. For some reason I can't find it on mine.
Title: Re: Grounding?
Post by: Crow on March 16, 2015, 10:38:55 AM
Mootsko, I have mine grounded with that ground mentioned in the manual. On mine it is in the rear on the flange where the tank and firebox meet on the right side and it is just a nut on a stud. You may have to move the insulation a little to see the fasteners on the flange.
Title: Re: Grounding?
Post by: mootsko on March 16, 2015, 10:58:13 AM
Ok.  Thanks. I'll give it a little better look. 
Do you got a rod pounded in the ground?
Title: Re: Grounding?
Post by: Crow on March 16, 2015, 05:36:12 PM
 Yes I put a rod into the ground and used 6 gauge copper wire.
Title: Re: Grounding?
Post by: Uponthehill on March 18, 2015, 03:31:46 PM
I did the same. 6' ground rod, #6 solid copper wire.
Title: Re: Grounding?
Post by: oaky on March 18, 2015, 06:23:32 PM
I'm sorry, but what is the reason for grounding the furnace? My electrical lead in cable has a ground wire that is grounded to the furnace.
Title: Re: Grounding?
Post by: fireboss on March 18, 2015, 06:42:19 PM
For a possible  lighting strike!
Title: Re: Grounding?
Post by: Crow on March 18, 2015, 07:00:26 PM
I'm sorry, but what is the reason for grounding the furnace? My electrical lead in cable has a ground wire that is grounded to the furnace.

As I am not an electrician or pretend to be, here is my reason for grounding it this way. The manual with the furnace shows where to ground it and why. IF/WHEN I have a problem with my stove I don't want a missed step with install to be a reason to not get assistance from the factory.
Title: Re: Grounding?
Post by: mlappin on March 19, 2015, 06:19:13 AM
Getting hit by lightning is very unlikely, however having stray voltage for whatever isn't, the separate grounding rod should take care of that, also water and metal combined with stray voltage does some weird things.
Title: Re: Grounding?
Post by: Cabo on March 19, 2015, 05:35:02 PM
If you can't find/don't have a grounding lug on the boiler just install a water pipe ground clamp on one of the supply/return nipples and connect to a ground rod. Inexpensive protection.
Title: Re: Grounding?
Post by: rickldb22 on March 20, 2015, 12:23:26 PM
I drilled a hole in one leg and grounded it there.
Title: Re: Grounding?
Post by: Singlemalt on April 26, 2015, 10:49:13 AM
Circulating water will create an energy field.  Static electricity????

The grounding would help disperse this.
Title: Re: Grounding?
Post by: schoppy on May 04, 2015, 11:31:54 PM
Jut an FYI, you should have your unit grounded to your power supply ground wire which would be tied in to your buildings service entrance grounding circuit. If this is done than you can add another ground rod and conductor (#6 copper minimum) to the stove. If the two are not tied together you have the potential to set up a voltage difference between the two grounding circuits which would also be an electrical code violation. There are never any guarantees for lightning strikes but this is what is also required for CSST gas piping systems in a home with a few other stipulations.
Title: Re: Grounding?
Post by: slimjim on May 05, 2015, 05:11:43 AM
Good post schoppy!
Title: Re: Grounding?
Post by: willieG on May 05, 2015, 09:37:50 PM
if you ground stove to earth and it is grounded through your electric supply and if your stove is hooked to your domestic water supply it will be bonded there as well. here in Ontario your water line must be bonded to your electrical supply and your gas line must be bonded as well
Title: Re: Grounding?
Post by: schoppy on May 06, 2015, 11:12:06 PM
I am not sure about your stove, but my outdoor wood stove uses pex tubing to my buildings. The water line would have to be copper or steel to be utilized as a grounding source. Water itself, pure water, actually is a very good insulator. It is the minerals and deposits in it that cause water to conduct electricity. The water itself should never be relied upon to be the conductor for grounding purposes. 
Title: Re: Grounding?
Post by: userdk on May 07, 2015, 12:48:52 PM
I have no idea how other brands are made but the Heatmaster electrical box is connected to the frame and is grounded.