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Are you all pleased with your solar panels for hot water heating
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29-03-2010 7:33pm#1
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Poll is closed
2,400 euro.
2010.
Between 4 and 5 sq. m.
45 degree pitch. Due S.
200l stainless triple coil.
No dump option.
Very happy, the company I bought from are very helpful, and provide excellent backup. Controller is a snazzy affair, with options to control a backup immersion element, temp settings and a 3 channel timer, as well as control of pump on the feed side (didn't need this as I have rock steady mains pressure, and converted to a non vented system at the same time). House is 12 years old, and well insulated (timber frame-with a lot of retro-fitting going on-I'm doing a major refurb atm).
Temp is hitting the high fifties with solar input alone at this time of year.0 -
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RoundyMooney wrote: »Poll is closed
2,400 euro.
2010.
Between 4 and 5 sq. m.
45 degree pitch. Due S.
200l stainless triple coil.
No dump option.
Very happy, the company I bought from are very helpful, and provide excellent backup. Controller is a snazzy affair, with options to control a backup immersion element, temp settings and a 3 channel timer, as well as control of pump on the feed side (didn't need this as I have rock steady mains pressure, and converted to a non vented system at the same time). House is 12 years old, and well insulated (timber frame-with a lot of retro-fitting going on-I'm doing a major refurb atm).
Temp is hitting the high fifties with solar input alone at this time of year.
Did you get Flat Panel or Vacuum Tubes???0 -
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RoundyMooney wrote: »Poll is closed
2,400 euro.
2010.
Between 4 and 5 sq. m.
45 degree pitch. Due S.
200l stainless triple coil.
No dump option.
Very happy, the company I bought from are very helpful, and provide excellent backup. Controller is a snazzy affair, with options to control a backup immersion element, temp settings and a 3 channel timer, as well as control of pump on the feed side (didn't need this as I have rock steady mains pressure, and converted to a non vented system at the same time). House is 12 years old, and well insulated (timber frame-with a lot of retro-fitting going on-I'm doing a major refurb atm).
Temp is hitting the high fifties with solar input alone at this time of year.
Can you post the comapny used in the thread for all to see? else PM me please.0 -
cost - €5000
year of installation - 01/2010
m2 area - 3m2
orientation - Due South about 25 deg pitch
flat plate or tubes - tubes (30)
cylinder size - 180L
summer heat dump strategy ( if any ) - None
Delighted with system. With lower volume of water, this allows for higher potential rise in temperature. Remember, you have to raise the WHOLE store of water 1 deg C at a time. I also went for an option for the controller to be able to store my data - useful for spotting any problems in the future in addition to seeing the real benefits of the system.
Here's my data from a Sunny day 15 June 2010. Temperature rise of Store of 30 deg C
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Hi ChampionCcost - €5000
year of installation - 01/2010
m2 area - 3m2
orientation - Due South about 25 deg pitch
flat plate or tubes - tubes (30)
cylinder size - 180L
summer heat dump strategy ( if any ) - None
Delighted with system. With lower volume of water, this allows for higher potential rise in temperature. Remember, you have to raise the WHOLE store of water 1 deg C at a time. I also went for an option for the controller to be able to store my data - useful for spotting any problems in the future in addition to seeing the real benefits of the system.
Here's my data from a Sunny day 15 June 2010. Temperature rise of Store of 30 deg C
Any chance you could show 12 months of data?
thanks0 -
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How's this for you - remember, I do not use anything (Immersion or Central Heating) to hop up this water so every degree and litre is solar heated. The temperatures indicated are those from the Top of the Storage Tank (180L)
Heh ChampionC
thanks a million- I like the feedback its giving you. I had a system installed last week and its only getting up to 55C at the collector (today which was sunny) and 53C about half way up the tank. (30tubes facing south 300L tank) I'm not convinced the system is working correctly so wondered what variation to expect. Your results are telling me that it might just be normal variation but likely to be either a rubbish system or its incorrectly installed.. I'll see how it behaves over a week or so. Any chance you could post your June 2011 data for Roof, Bottom and Top tank?
Rockie20100 -
Here's my data from yesterday so that you have something to go on with. My system is a Kingspan Thermomax (I believe I can name a brand but not the installer) 30 tube system with a 180L store. The equivalent for a 300L store to gain the same return would be 50 tubes. My objective was to maximize heat gain during Spring and Autumn. With a totally sunny day in June last year, I got a rise of 30 deg C for the 180L. With 30 tubes and a 300L store I would expect the best you would get would be about 15 deg C.
Basically, the more water you have stored, the more difficult it is to raise the temp by 1 deg C at a time.
If you examine my data from yesterday, you'll notice that I had a rise yesterday of about 10 deg C so if you had the same sort of conditions as I had, you could then expect about a 5 - 6 deg C increase but that's about it.
The advantage of having data is that you can see the system in motion. The roof temp increases (Green) and when about 8 or so deg above the bottom of store temp (Blue), then the pump kicks in and starts transferring heat into the bottom until it gets to the same temp as the top of the store (Red) and then the top and bottom inch up a degree at a time (when the sun is out - you can see when clouds must have come across) until the sun finally falls away just after 18:30. Another bit that is useful is to see the natural loss from the store. I seem to lose about 1 deg C every 2 - 3 hours
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RoundyMooney wrote: »Poll is closed
2,400 euro.
2010.
Between 4 and 5 sq. m.
45 degree pitch. Due S.
200l stainless triple coil.
No dump option.
Very happy, the company I bought from are very helpful, and provide excellent backup. Controller is a snazzy affair, with options to control a backup immersion element, temp settings and a 3 channel timer, as well as control of pump on the feed side (didn't need this as I have rock steady mains pressure, and converted to a non vented system at the same time). House is 12 years old, and well insulated (timber frame-with a lot of retro-fitting going on-I'm doing a major refurb atm).
Temp is hitting the high fifties with solar input alone at this time of year.
Hi Roundy,
Grateful if you could PM the comapny details to me also.
Thanks.0 -
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Here's my data from yesterday so that you have something to go on with. My system is a Kingspan Thermomax (I believe I can name a brand but not the installer) 30 tube system with a 180L store. The equivalent for a 300L store to gain the same return would be 50 tubes. My objective was to maximize heat gain during Spring and Autumn. With a totally sunny day in June last year, I got a rise of 30 deg C for the 180L. With 30 tubes and a 300L store I would expect the best you would get would be about 15 deg C.
Basically, the more water you have stored, the more difficult it is to raise the temp by 1 deg C at a time.
If you examine my data from yesterday, you'll notice that I had a rise yesterday of about 10 deg C so if you had the same sort of conditions as I had, you could then expect about a 5 - 6 deg C increase but that's about it.
The advantage of having data is that you can see the system in motion. The roof temp increases (Green) and when about 8 or so deg above the bottom of store temp (Blue), then the pump kicks in and starts transferring heat into the bottom until it gets to the same temp as the top of the store (Red) and then the top and bottom inch up a degree at a time (when the sun is out - you can see when clouds must have come across) until the sun finally falls away just after 18:30. Another bit that is useful is to see the natural loss from the store. I seem to lose about 1 deg C every 2 - 3 hours
That is helpful C. I should be thinking of temp gains not absolute temp. I think it did climb around 7 degrees yesterday. I would have gone for that monitoring system if it were offered to me at the time. I don't have a Steca pump station/controller. so not sure it can be retrofitted. I've contacted them.
R.0 -
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