There seems to be a lot of interest in using heat pumps (aka heat exchangers as found in air conditioning units) to replace traditional hot water heating methods (like an electric heater or gas). They are even being presented as possibly more efficient than a solar hot water heater...
Hi Eco Guy,
My father installed a Siddons Solar Plus Heat Pump 21 years ago. The system was well installed. At year 8 the service guy did a regular check over of the systems operations. No maintenance was required. In the last 13 years the system has not been touched. No work has been undertaken on our Solar Plus Heat Pump in 21 years.
I don't know about other Heat Pump systems, but your theoretical calculations are not consistent with our 21 years of day-to-day experience with our Solar Plus Heat Pump.
ON Thu, 7 Oct 10, 12:25pm probably from Australia Reply to this comment
Interesting, I wasn't aware there was a hybrid system on the market; so you can get the best of both - do you have figures on the initial cost and the wattage rating/running times of the various electrical components - I'll then work out the break even point in yearly costs and update the article.
As regards the other calculations - I'm going on the warranty periods now provided and the explicit exceptions often found; i.e. if a component is warranted for 20 years, its earliest point of cost to you failure would be in its 21st year.
ON Fri, 8 Oct 10, 11:36pm probably from Australia Reply to this comment
You are telling the helpful information regarding hot water system that warm the water in sufficient way.
ON Tue, 7 Jul 15, 10:41am probably from India Reply to this comment
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