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Forum: Electrical: Batteries, Generators & Solar

19-09-2017, 08:57

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

Anything where safety is a question is MUCH more expensive in the U.S. due to our cockamamie tort system and resultant products liability insurance cost! Just try to buy a life raft in the U.S.!...

Forum: Electrical: Batteries, Generators & Solar

19-09-2017, 08:28

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

I guess to each his own, but I don't much get using gas to heat a boat. What is the advantage over diesel fuel, which is perfectly safe, which is cheaper, and which you already store on board in...

Forum: Electrical: Batteries, Generators & Solar

19-09-2017, 06:56

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

Yes, you are right.

I did go on to say:

"There ARE propane heaters which are suitable for marine use (sealed burners and so forth), but they are rare and expensive. See here:...

Forum: Electrical: Batteries, Generators & Solar

19-09-2017, 00:18

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

As I said -- marine suitable propane heaters do exist. The burners have to be sealed to the room they are heating in order to pass ABYC.

Forum: Electrical: Batteries, Generators & Solar

17-09-2017, 01:48

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

To each his own!!

Propane explosions happen when LPG leaks into a boat and sinks into the bilge. Gram for gram, propane is far more explosive than TNT. If you read through the cases you'll...

Forum: Electrical: Batteries, Generators & Solar

16-09-2017, 06:51

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

Winter sailing is a special joy, understood perhaps not by all sailors.

One other comment -- don't use propane heaters on a boat! Most of them They are forbidden by ABYC -- for good reason! --...

Forum: Electrical: Batteries, Generators & Solar

15-09-2017, 08:08

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

Sounds like you're on the right track.

Solar is the ideal power source if you have room for it. So even forgetting about heating with it, it's great to have.

For heating -- I think you really...

Forum: Electrical: Batteries, Generators & Solar

15-09-2017, 07:50

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

We use tube heaters to keep boats from freezing in the mild winters on the South Coast of England. The smallest ones are about 120 watts, I think, and you need multiple ones. Fiberglass boats are...

Forum: Electrical: Batteries, Generators & Solar

15-09-2017, 07:34

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

Look up Webasto and Espar. You can run these even if you're not on board. They are available with remote control devices which you can activate with a text message, or you can set a timer.

But...

Forum: Electrical: Batteries, Generators & Solar

15-09-2017, 00:02

Replies: 93

Solar, off grid and heat problem

Views: 9,187

Posted By Dockhead

Re: Solar, off grid and heat problem

Just do the math and you'll see that you can't get useful heat from a 150 watt (or even 500 watt) solar panel. You'll need to burn something when you don't have shore power. I'm not aware of any...

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