I have Solar heating which is a sealed system coiled into the lower part of a new storage tank. The Gas cental heating is old, noisey and is piped into the higher part of the storage tank. I want to update my heating system to include the Solar heating but have read that the Combi system will not work with the Solar system.
1. Why can't the Solar be piped into the supply of the Combi.
2. If 1. is not possible, what would the best alternative be.
My thanks to acsimpson for quote, I still don't know if the water from the Solar heated tank can be used as a supply for a Combi boiler, does it need COLD water or mains PRESSURE.
Last edited by Steve W on Sat May 02, 2009 12:11 pm, edited 1 time in total.
If I understand it correctly then you can't use a combi as it does not store any hot water, while the Solar system works on a stored hot water basis.
To continue using your solar system you would need to update your system with a stored hotwater system. Either a vented or unvented one. Provided the hot water storage is well insulated there is no reason it should be less efficient than a combi and with the added solar benefits it should be better.
Personally I prefet stored hot water as there are not issues with minimum flow rates for hot water.
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