I had a Worcester Bosch Greenstar 28Kw combi boiler fitted last year at the recommendation of a heating engineer. It seemed fine in the summer but now that the weather is cold it isn't up to the task of suplying hot water.
In the summer the hot water it supplied was just about hot to the touch and if running a bath you would not need to put any cold water in. But now that the weather is colder the "hot" water it supplies is not hot enough, it certainly isn't hot enough for a shower as you have to turn the shower tap down to a low flow rate to get any amount of heat from it. If I run a bath the water is only just warm enough and soon goes cold.
Someone told me that the Greenstar is restricted to liftng the water temp by a certain amount and therefore in winter as the input temperatue is lower then so is the output temp. This seems a bit daft as it means that the boiler is virtually useless.
So. Is there a way of modifying the boiler in order to get a bit of performance out of it? In the worst case scenario that I have to replace it, is there a boiler that fits straight on in its place with little modification?
Any advice gratefully received.
Jay
In the summer the hot water it supplied was just about hot to the touch and if running a bath you would not need to put any cold water in. But now that the weather is colder the "hot" water it supplies is not hot enough, it certainly isn't hot enough for a shower as you have to turn the shower tap down to a low flow rate to get any amount of heat from it. If I run a bath the water is only just warm enough and soon goes cold.
Someone told me that the Greenstar is restricted to liftng the water temp by a certain amount and therefore in winter as the input temperatue is lower then so is the output temp. This seems a bit daft as it means that the boiler is virtually useless.
So. Is there a way of modifying the boiler in order to get a bit of performance out of it? In the worst case scenario that I have to replace it, is there a boiler that fits straight on in its place with little modification?
Any advice gratefully received.
Jay