Having read around the subject and previously fitting a thermal store to my last house, I decided that this time I would plumb for a pressurised cylinder instead (pun intended). My reasoning for this was that although the thermal store worked well, I needed to heat a larger volume of water to a higher temperature to get the same result as a pressurised cylinder. The downside was that I couldnt fit the cylinder myself and it would need an annual service. I had been looking at a Mixergy cylinder which cleverly heats the water from the top down and therefore less water needs to be heated. I reasoned that I might be able to supply my hot water needs (estimated at about 3 Kwh/day) using a solar diverter. I bit the bullet and ordered a 120 litre Mixergy cylinder and a MyEnergy Eddi diverter. The cylinder has the option of adding a heat exchanger to the side so that it can accept input from a heat pump. I wasnt sure if I needed that option yet but it was good to have it there in case I fitted the Eddi myself, but unfortunately finding a plumber who was willing to fit the cylinder proved problematic, so both the diverter and cylinder sat unused in the cupboard. An additional problem was that the indoor stopcock was in the way of the cylinder and I couldnt find the external stopcock anywhere.
Since the house was still unmetered for water, I contacted the Welsh Water and asked them to fit a meter, that way I would get an external stopcock fitted at the same time.
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The 70's extention had a gas fire at some time but the fireplace had been sealed up. We wanted to get a wood burning stove for the cold winter nights and so I set about installing one after contacting building control to get it signed off afterwards. Installing the stove involved taking the old liner out of the chimney and sweeping it. A new chimney pot was cemented on and the new liner inserted. The old fireplace was opened up and lined with cement boards. Porcelain tiles were then laid with heat resistant cement. My eventual intention was to fit a heat pump and get rid of the gas entirely but I wasn't exactly sure when that would be possible. At this point my thoughts were to first disconnect the water heating and use an immersion heater and water tank, then at a later date remove the combi boiler completely.
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AuthorEx Radiographer, Information Analyst, Teacher and Self-builder. Now retired Archives
December 2023
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