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Well & Truly Off The Grid
Last Post by Mars 3 years ago
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Mars
 Mars
(@editor)
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17014 kWhs
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Joined: 3 years ago
Posts: 2340
Topic starter 18/07/2021 2:45 pm  

The garden room has hit a rather uncomfortable 37C. It’s absolutely roasting today. How hot is it where you are?

 

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Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU

Follow our sustainability journey at My Home Farm: https://myhomefarm.co.uk


   
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 Derek M
(@derek-m)
Illustrious Member Moderator
13722 kWhs
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18/07/2021 4:39 pm  

Hi Mars,

According to the weather forecast it is 29C today, yesterday was 30C.

We are therefore thankful that we installed the A2A ASHP and can keep the indoor temp down to 23C to 24C which is much more comfortable.

This post was modified 3 years ago by Derek M

   
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 batalto
(@batalto)
Famed Member Member
3655 kWhs
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Posts: 1091
19/07/2021 8:15 am  

This was yesterday - the results of AC, a hot tub and 14kw of batteries. We can keep the heat at bay and we don't pay for it. Honestly if you have solar panels, why wouldn't you get AC - you literally only use it when the sun is shining

image

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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JulianC
 JulianC
(@julianc)
Prominent Member Member
1033 kWhs
Joined: 3 years ago
Posts: 304
19/07/2021 5:08 pm  

We live in a "glass house".  No really.  If you think of an "ordinary" pane of glass, 100cm high x 70cm wide, we have 85 round the bungalow.  As well as partial glass roof in sitting room, dining room and conservatory (or do we call it a garden room now, to be posh? 😉)

It is 20 years old and used to get unbearably hot with the old glazing.  With new, 95% solar heat reflecting roof glazing and triple glazing everywhere else, ceiling fans fitted in sitting, room dining room and conservatory and much better loft insulation, everything is better.  We close curtains on the side facing the sun.  Lock windows open.  The bedrooms are East facing, so are cooler in the evening.

As people know from my "Worcestershire ASHP" entry here, I am hoping these insulation changes have a positive impact on our recently install ASHP.

So @mars - what roof glazing do you have in your Garden Room?  Changing that could have a big impact in reducing summer solar gain.  In the winter, when the sun is lower in the sky, achieve solar gain through the main windows.

Daikin Altherma 3H HT 18kW ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and Hyundai Ioniq 5 P45 electric vehicles with Myenergi Zappi mk1 charger


   
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 Derek M
(@derek-m)
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19/07/2021 11:30 pm  

Too true Batalto, you can also use it for heating when the Sun shines, but is also cold outside.


   
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Mars
 Mars
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Topic starter 22/07/2021 11:59 am  

@julianc, what do you mean by roof glazing?

Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU

Follow our sustainability journey at My Home Farm: https://myhomefarm.co.uk


   
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