Hello everyone,
We've just moved to a new (to us) house and inherited a solar hot water system that, from the small amount of docs we have, looks to be a good 30 years old at least. So, looking for some good sites/information that I can read up on to understand how this thing operates before I start tinkering with anything.
What I can see from a brief look at the weekend, the set up is:
- Seemingly two water tanks, and expansion vessel, in the loft
- Hot water tank in bathroom cupboard
- A 'Frepar RESOL E1' (switch/controller?) linked to some kWh counter, a fused spur, and a switch labelled 'solar' / 'pre heat'
- An equally venerable gas boiler down in the kitchen
- Four solar panels on roof, with pipework down to the tanks in the loft.
Any resources that people could point me to would be very much appreciated; the biggest reason at the moment is that the hot water isn't all that hot, even when turned on at the boiler (and hot feed out seems OK), so looking for pointers on different parameters to try.
Thanks all!
We've just moved to a new (to us) house and inherited a solar hot water system that, from the small amount of docs we have, looks to be a good 30 years old at least. So, looking for some good sites/information that I can read up on to understand how this thing operates before I start tinkering with anything.
What I can see from a brief look at the weekend, the set up is:
- Seemingly two water tanks, and expansion vessel, in the loft
- Hot water tank in bathroom cupboard
- A 'Frepar RESOL E1' (switch/controller?) linked to some kWh counter, a fused spur, and a switch labelled 'solar' / 'pre heat'
- An equally venerable gas boiler down in the kitchen
- Four solar panels on roof, with pipework down to the tanks in the loft.
Any resources that people could point me to would be very much appreciated; the biggest reason at the moment is that the hot water isn't all that hot, even when turned on at the boiler (and hot feed out seems OK), so looking for pointers on different parameters to try.
Thanks all!