EcoRenovator  

Go Back   EcoRenovator > Search Forums
Reload this Page Search Results
Advanced Search
 


Blog 60+ Home Energy Saving Tips Recent Posts


Showing results 1 to 25 of 25
Search took 0.00 seconds. Search: Posts Made By: Mikesolar
Forum: Geothermal & Heat Pumps 10-17-15, 06:51 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Don't get rid of the rads. Keep them as a second...

Don't get rid of the rads. Keep them as a second stage for really cold days. Turn the boiler max temp down to 50C and see if it will still provide the heat you need.. Oil usually needs a higher...
Forum: Geothermal & Heat Pumps 01-02-14, 06:40 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
And then you have this: ...

And then you have this:

http://triangletube.com/documents/23/SME_Literature.pdf

A little closer to home
Forum: Geothermal & Heat Pumps 09-02-13, 01:14 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Don't try to hit the turbulent sweet spot. None...

Don't try to hit the turbulent sweet spot. None of us are that accurate and the conditions will change over time so as Randon says.....add the pipe. The biggest issue is surface area.
Forum: Geothermal & Heat Pumps 05-20-13, 07:25 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
AC, I am all for GSHP's and experimenting with...

AC, I am all for GSHP's and experimenting with them. I only wanted to point out that the conditions that make GS suitable also apply to ASHPs, in this case.

Of course, there should have been a new...
Forum: Geothermal & Heat Pumps 05-20-13, 08:27 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Hmmm, not really. Your math doesn't account for...

Hmmm, not really. Your math doesn't account for variations in outdoor temps and indoor temp, number of running hours in a year, DHW vs space heat (assuming oil is doing both), solar gain, wind losses...
Forum: Geothermal & Heat Pumps 05-17-13, 05:15 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
My favorite way to do underfloor heating is with...

My favorite way to do underfloor heating is with a gypsum cement (screed in the UK) then some engineered wood, tile or linoleum over top. If there is no other way then attacking it from below is OK...
Forum: Geothermal & Heat Pumps 05-17-13, 01:01 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
It's hard to know if the heat load is right. We...

It's hard to know if the heat load is right. We would have to know all the insulation levels, window type and sizes etc. That said, 4kw heating seems a bit small for a house of that size. I was...
Forum: Geothermal & Heat Pumps 05-17-13, 05:51 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
AC, the low temp rads (Stelrad, Centre rad,...

AC, the low temp rads (Stelrad, Centre rad, Myson) are standard in the UK and the prices are 30% of what we buy the same one for here. The market in Europe is way bigger
Forum: Geothermal & Heat Pumps 05-16-13, 07:08 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Your best bet is to get the running temps of the...

Your best bet is to get the running temps of the rads down to that of the floors. If that means putting more rads in , so be it. From my heating engineer friends in the UK, I am told that the most...
Forum: Geothermal & Heat Pumps 04-20-13, 08:43 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
The buffer is an absolute necessity. The European...

The buffer is an absolute necessity. The European blokes I know (who only do rads and floors, typically) tell me that 30L/kw (25G/ton?) is the right size to prevent issues. Those issues can be based...
Forum: Geothermal & Heat Pumps 04-01-13, 05:26 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
About the solar panel: as long as it is of low...

About the solar panel: as long as it is of low efficiency such as pex and aluminum plates (painted or otherwise), the stagnation temp won't be high enough to degrade glycol fast and you need to use...
Forum: Geothermal & Heat Pumps 03-30-13, 04:00 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
I would pump the water down to a 120gal hot water...

I would pump the water down to a 120gal hot water tank (or as big as you can get) and then pump that water to the HP at night through a 3 way valve to limit the water temp from going higher than...
Forum: Geothermal & Heat Pumps 03-28-13, 09:00 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
36 bar is a ridiculous pressure. 30 is just fine....

36 bar is a ridiculous pressure. 30 is just fine. R410 at 50C is just under 30Bar. What temps do you want to heat to? Above this temp, the HPs are usually CO2 or 2 stage units.

There are lots of...
Forum: Geothermal & Heat Pumps 03-24-13, 01:54 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Always plumb them in parallel. I assume they are...

Always plumb them in parallel. I assume they are to be complete heat pumps and you are doing all this on the water side because if it was on the refrigerant side, it is a whole other world.....
Forum: Geothermal & Heat Pumps 12-18-12, 04:51 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
How much current did you put through the control...

How much current did you put through the control side? Most that I know if are limited to 7-8mA
Forum: Geothermal & Heat Pumps 12-17-12, 09:17 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
What did you use to provide signal to the SSR as...

What did you use to provide signal to the SSR as mine are 24VAC for the trigger and yours is a VDC input. I just blew one 125A which failed to closed, which they are not supposed to do, because I...
Forum: Geothermal & Heat Pumps 12-17-12, 05:41 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Actually, the ASHPs I refer to are not the...

Actually, the ASHPs I refer to are not the Fujitsu and Mitsi of the world but ones that will heat water for floor heating with an air top up (if needed) and are indoors like a GSHP. Randon has done...
Forum: Geothermal & Heat Pumps 12-16-12, 09:22 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Better price and Canadian made is the Digicool...

Better price and Canadian made is the Digicool AK900 which has the p/t chart for R290. I have two of them, one for R410 and one for R22 and I might get a 3rd just for propane.
Forum: Geothermal & Heat Pumps 12-14-12, 05:34 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
We used to get -30C regularly. I remember one...

We used to get -30C regularly. I remember one winter in 93 or 94 where it was -25C steady for almost 6 weeks. Every heating guy and plumber was working flat out fixing frozen and broken water lines...
Forum: Geothermal & Heat Pumps 12-08-12, 09:34 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Depends where.....there are some places in Poland...

Depends where.....there are some places in Poland and north that can get -30C but most of the low lands (Benelux countries) seldom get colder than -10C.

Add up the hours of -20C temps and see if...
Forum: Geothermal & Heat Pumps 11-30-12, 05:40 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
I've been on there quite a bit in the last couple...

I've been on there quite a bit in the last couple of years but unless you really want to take a beating, don't let yourself appear like a DIY guy. There are knowledgeable people on there but also a...
Forum: Geothermal & Heat Pumps 11-30-12, 05:36 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
I had read that 120C was at the temp activated...

I had read that 120C was at the temp activated the bypass but that the comp won't last long if the bypass is used regularly. It is different for different comps so we would have to look at the...
Forum: Geothermal & Heat Pumps 11-28-12, 07:01 AM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
Randen, If your hermetic comp is the same as...

Randen,
If your hermetic comp is the same as mine, it has a second port on the top that is caped off. It may be for a bypass but also MAY be used for a vapour injection (need to check this out). If...
Forum: Geothermal & Heat Pumps 10-27-12, 08:21 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
In the trade, we use the term "ton" in a very...

In the trade, we use the term "ton" in a very loose way. Usually only to denote a package product size such as a "3 ton split system". When talking about heat transfer or more specific ideas it is...
Forum: Geothermal & Heat Pumps 10-27-12, 08:13 PM
Replies: 1,943
Views: 4,647,974
Posted By Mikesolar
One thing is for certain, you will need more...

One thing is for certain, you will need more batteries than you want to use IF you want to use a heat pump and solar only. The compressor needs a regulated voltage and it must stay within that...
Showing results 1 to 25 of 25

 
Forum Jump

All times are GMT -5. The time now is 11:34 PM.

Contact Us - EcoRenovator.org - Archive - Top

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design