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Search: Posts Made By: ChetT
Forum: Geothermal & Heat Pumps 10-26-20, 09:40 PM
Replies: 18
Views: 1,348
Posted By ChetT
Water temp

I've been thinking of using a similar system for my underfloor heating. Can either of you tell me how high a temperature can you heat the water? I need to add 15K BTU and I need to heat water to...
Forum: Appliances & Gadgets 03-11-18, 02:28 PM
Replies: 17
Views: 5,072
Posted By ChetT
Todd - That's certainly true for a fuel powered...

Todd - That's certainly true for a fuel powered boiler as the heat would go out with the exhaust but not so with electric. The conversion from electricity to heat will still be 100% but the coated...
Forum: Appliances & Gadgets 03-09-18, 05:33 PM
Replies: 17
Views: 5,072
Posted By ChetT
I believe the scale will reduce the heat transfer...

I believe the scale will reduce the heat transfer and therefore the efficiency of the electric heater coil and that in turn will increase the recovery time of the HW tank. You'll use less...
Forum: Geothermal & Heat Pumps 06-10-17, 05:44 PM
Replies: 24
Views: 4,871
Posted By ChetT
Jeff, Maybe you don't need to move any...

Jeff,
Maybe you don't need to move any temperature sensors. You can use the existing radiant slab thermostat. When the system calls for heat you could fool the inside head unit of the mini/s by...
Forum: Geothermal & Heat Pumps 06-09-17, 10:31 PM
Replies: 24
Views: 4,871
Posted By ChetT
Hi Wyr, Thanks for the offer. You got me...

Hi Wyr,
Thanks for the offer.
You got me thinking and I did a little digging and found this data point on another thread.

"At 2.8F outdoors. 68F indoors the Mitsubishi running at max blower...
Forum: Geothermal & Heat Pumps 06-09-17, 08:42 PM
Replies: 24
Views: 4,871
Posted By ChetT
Jeff, My system operates most of the time at...

Jeff,

My system operates most of the time at 110F and ramps up to a max water temp of 130F on the coldest days. I don't know what the hot side temperature is for the mini split I'm considering...
Forum: Geothermal & Heat Pumps 06-08-17, 07:21 PM
Replies: 24
Views: 4,871
Posted By ChetT
I've been thinking about just this problem for my...

I've been thinking about just this problem for my Maine home. I have 3 zones of underfloor water based radiant heat. Given my location, an electric boiler made the most sense as a heat source. ...
Forum: Geothermal & Heat Pumps 03-21-17, 01:07 PM
Replies: 4
Views: 1,493
Posted By ChetT
Well I didn't look at it as doing 2 things with...

Well I didn't look at it as doing 2 things with the same unit as much as incorporating a more economical system into an existing one. The way I see it is that I have a house with 2 heating systems. ...
Forum: Geothermal & Heat Pumps 03-20-17, 05:31 PM
Replies: 4
Views: 1,493
Posted By ChetT
adding Mini split to under floor radiant

Well this forum has been an interesting read. I hope you can help me with some informative comments regarding my project.
I have a small (1300 sq ft), two story farmhouse. Crawl space under the...
Forum: Renovations & New Construction 09-08-14, 01:37 PM
Replies: 80
Views: 18,188
Posted By ChetT
Thanks for the feedback GtoJ. You bring up a...

Thanks for the feedback GtoJ.
You bring up a great point that I had totally overlooked, tiny crawlspace opening. I think I have another access but now I'll need to check it out again. Duh!

I...
Forum: Renovations & New Construction 09-06-14, 03:59 PM
Replies: 15
Views: 5,043
Posted By ChetT
I would think that the real motivation for the...

I would think that the real motivation for the mini-split is to add cooling. Massachusetts has some ugly, hot and muggy summer days.
Forum: Renovations & New Construction 09-05-14, 07:01 PM
Replies: 46
Views: 8,989
Posted By ChetT
Nice work. How thick are the aluminum...

Nice work.

How thick are the aluminum spreader plates? Who is the manufacturer?
Forum: Renovations & New Construction 09-04-14, 11:14 PM
Replies: 80
Views: 18,188
Posted By ChetT
Thanks for the response AC I'm starting a...

Thanks for the response AC
I'm starting a restoration on an old farmhouse in Maine and I've stumbled across this site and from what I've read so far I expect to receive some good advice here.

The...
Forum: Renovations & New Construction 09-04-14, 09:11 PM
Replies: 80
Views: 18,188
Posted By ChetT
Hi AC Why not put full 4x8 sheets across the...

Hi AC

Why not put full 4x8 sheets across the bottom of the joists?
Forum: Renovations & New Construction 09-04-14, 07:54 PM
Replies: 80
Views: 18,188
Posted By ChetT
Hi AC Why not put full 4x8 sheets across the...

Hi AC

Why not put full 4x8 sheets across the bottom of the joists?
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