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Search: Posts Made By: WillyP
Forum: Solar Heating 12-13-21, 10:53 AM
Replies: 28
Views: 9,008
Posted By WillyP
Thanks for your input. It sounds like you have a...

Thanks for your input. It sounds like you have a system that works for you. I am curious about two things. How do you keep the slab from cracking? If you use deep footers, are they insulted?
Forum: Solar Heating 01-29-21, 04:53 PM
Replies: 28
Views: 9,008
Posted By WillyP
Sorry man! I am in the design phase right now. I...

Sorry man! I am in the design phase right now. I am asking a million questions and have already realized some serious errors in my plan. I wont begin construction on the house, until spring of next...
Forum: Solar Heating 12-30-20, 01:19 PM
Replies: 28
Views: 9,008
Posted By WillyP
Jeff: I am not using it for domestic hot water....

Jeff:
I am not using it for domestic hot water. I will be using an electric hot water heater, powered by the PV panels (grid tied system).
I will be heating the whole house.
The Evacuated tubes...
Forum: Solar Heating 12-28-20, 02:46 PM
Replies: 28
Views: 9,008
Posted By WillyP
Ironically oil was my way of keeping it simple....

Ironically oil was my way of keeping it simple. It wont freeze, it lasts much longer than Glycol, and it is cheaper. Unfortunately I now know it also doesn't hold heat as long and would be very...
Forum: Solar Heating 08-05-20, 01:44 PM
Replies: 28
Views: 9,008
Posted By WillyP
I would love to hear some first hand experience...

I would love to hear some first hand experience information. By "flat plate" are you talking about a box with tubes in it?
Forum: Solar Heating 08-04-20, 02:41 PM
Replies: 28
Views: 9,008
Posted By WillyP
I am absolutely interested. To be clear, I have...

I am absolutely interested. To be clear, I have no intention of running oil through the slab. I was going to use oil to go through the evacuated tube heater and into coils, inside the water tanks. My...
Forum: Solar Heating 08-02-20, 10:45 AM
Replies: 28
Views: 9,008
Posted By WillyP
[QUOTE=gadget;62912]The other problem with oil is...

[QUOTE=gadget;62912]The other problem with oil is messy leaks. There will always be a leak at some point.

I ran an open tank hot water setup in my greenhouse a few years back. Water temp was 100F....
Forum: Solar Heating 07-30-20, 05:42 PM
Replies: 28
Views: 9,008
Posted By WillyP
my problem with water is; at the heat the...

my problem with water is; at the heat the evacuated tube heaters run, the tanks would have to be vented to be safe. There will be a lot of evaporation in a vented tank with 185 water. I think this...
Forum: Solar Heating 07-30-20, 04:28 PM
Replies: 28
Views: 9,008
Posted By WillyP
Here is a diagram I made of the system. Somebody...

Here is a diagram I made of the system. Somebody asked me for this someplace...
Forum: Solar Heating 07-14-20, 04:29 PM
Replies: 28
Views: 9,008
Posted By WillyP
Need help designing a solar water heater for radiant floor heat

Anybody who has ever owned (or operated) a well-designed greenhouse*1 knows how well heat sinks work. However anybody who has owned a poorly designed greenhouse knows (without a doubt) that heat...
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