Sand battery heater

BBSA said:
I use quite a bit of gas to heat my house in the winter. It would be great if I could find ways to reduce that consumption using the spare solar energy.
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Can't you heat it during the day with cheap IR heaters and the insulation should keep it warm during the night?

What will you do during summer with even more excess generation?
 
wingnut771 said:
Can't you heat it during the day with cheap IR heaters and the insulation should keep it warm during the night?

What will you do during summer with even more excess generation?
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At the moment I'm not using the excess generation, so it is basically wasted. Would be nice if I can use it for something.
 
Anyway, I remember those radiators from my high school days. Unless your desk was next to them along the wall, they did fokkal in warming the classroom imho and there were 6 or 8 iirc.
 
BBSA said:
So I will need to use electricity then the sun is down?
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This 12V one only uses 7.5W

www.sustainable.co.za

Geyserwise 12V Brushless Circulation Pump

Technical Specifications Specification: 12VDC, Max 8Lpm, Max 2M,7.5W. Soft start: 2W. Required Voltage scope: 7~17.7V. Rated: 12VDC System pressure: Operating = 600kpa, Tested = 3500kpa. Max continuous working liquid temperature: 90ºC. Max temperature/minimum period :100ºC. Flow rate: 2L/min to...
www.sustainable.co.za www.sustainable.co.za
 
BBSA said:
So I will need to use electricity then the sun is down?
Click to expand...
Get circulation wilo type pump that only uses like 20w a low speed the one i have is 3 speed unfortunately my killawatt type plug packed up so can't measure what it uses on speed 2/3
 
tetrasect said:
This 12V one only uses 7.5W

www.sustainable.co.za

Geyserwise 12V Brushless Circulation Pump

Technical Specifications Specification: 12VDC, Max 8Lpm, Max 2M,7.5W. Soft start: 2W. Required Voltage scope: 7~17.7V. Rated: 12VDC System pressure: Operating = 600kpa, Tested = 3500kpa. Max continuous working liquid temperature: 90ºC. Max temperature/minimum period :100ºC. Flow rate: 2L/min to...
www.sustainable.co.za www.sustainable.co.za
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That is not bad.
 
If you have sand battery inside you can just let it lise heat to area around it without circulation pumps
 
Again, how long will the 150l of geyser water heated during the day stay hot while circulating in the radiator at night?
 
wingnut771 said:
Again, how long will the 150l of geyser water heated during the day stay hot while circulating in the radiator at night?
Click to expand...
25 Years ago, I had the 500w panel heaters in the bedrooms running 24/7/20. They take the chill out of the room and contents. You still had to wear a jersey etc. The oil multifin heater heats up a room quite quickly but uses a lot of power.

Thumb suck - If you keep the doors closed and let it warm up during the day - 150l with insulation on pipes etc should gain you a couple of hours. If you are starting off cold - I would guess less than an hour. Size of room, type of curtains and bedding will give different results.
 
HobieDave said:
25 Years ago, I had the 500w panel heaters in the bedrooms running 24/7/20. They take the chill out of the room and contents. You still had to wear a jersey etc. The oil multifin heater heats up a room quite quickly but uses a lot of power.

Thumb suck - If you keep the doors closed and let it warm up during the day - 150l with insulation on pipes etc should gain you a couple of hours. If you are starting off cold - I would guess less than an hour. Size of room, type of curtains and bedding will give different results.
Click to expand...
That doesn't sound to promising.
 
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