About The Project
Our Trenarry Cubert project was a installation with a few obstacles to over come, firstly the property was a 1960s bungalow with a recent refurbishment in the last couple years, how ever not all of the external walls had been Renovated so there were some walls solid stone and some with cavity insulation this meant we had to get our heat loss spot on for correct sizing of the heat pump. The main problem the customer had was his ground floor heating not working properly on his existing oil insulation on a thorough inspection of the properties heating system we found the whole down stairs radiator circuit was completely plumbed of a 15mm flow and return which wasn’t a allowing flow rate to all radiators to sufficiently heat the downstairs radiator zones. The Customer was always looking to use a renewable heating solution and the companies he had approached before us had all recommend High Temperature Units, however our recommendation was to replaces his down stairs radiators for a flow rate of 40 degrees and re pipe the down stairs heating circuit allowing us to use an R32 Monoblock. Fortunately the upstairs heating circuit flow and returns were previously oversized, Including the radiators therefor meaning we didn't have to change anything upstairs. After our final heat loss calculation and design we specified changing all the down stairs radiators, a 16kw air source unit with a design flow temperature of 40degrees at minus 1. The down stairs also had a UFH zone which meant the property had 3 heating zones in total all with different solar gains and losses due to more glass in some areas of the property than others and due to being on the North coast of Cornwall. The client also has a substantial amount of solar PV and batteries and wanted to utilise this into the system, with all of these factors in mind we specified the system to run off weather compensation with high limit thermostats in each zone to account for solar gain a plate loaded hot water cylinder and a 150l buffer tank with 2 immersions and a solar i boost.
For this project we used our own EkoKozy MCS certified heat pump as it comes standard with Anti Corrosion casing and evaporator fins Perfect for the Cornish coast and with remote diagnosis technology allowing us to monitor the heat pump 24 hours a day and activating the 10 year warranty giving customer complete peace of mind on the lifespan and operation of the product. We are also using the weather compensation feature on this heat pump.
We used a plate loaded hot water cylinder rather than a traditional cylinder with a coil which are proven to be 30-40% more Efficient hence saving the customer more money in there utility bills.
The solar I boost was used in conjunction with 2 immersions one in the hot water cylinder for the sterilisation cycle and one in the buffer set at 45 degrees. The purpose of this was to take full advantage of the solar PV system all ready installed in the clients property. These are perfect to make sure as much surplus electricity created by the PV panels are used by the client and not sent back to the grid, essentially using the buffer and cylinder as thermal stores.
For this project we used our own EkoKozy MCS certified heat pump as it comes standard with Anti Corrosion casing and evaporator fins Perfect for the Cornish coast and with remote diagnosis technology allowing us to monitor the heat pump 24 hours a day and activating the 10 year warranty giving customer complete peace of mind on the lifespan and operation of the product. We are also using the weather compensation feature on this heat pump.
We used a plate loaded hot water cylinder rather than a traditional cylinder with a coil which are proven to be 30-40% more Efficient hence saving the customer more money in there utility bills.
The solar I boost was used in conjunction with 2 immersions one in the hot water cylinder for the sterilisation cycle and one in the buffer set at 45 degrees. The purpose of this was to take full advantage of the solar PV system all ready installed in the clients property. These are perfect to make sure as much surplus electricity created by the PV panels are used by the client and not sent back to the grid, essentially using the buffer and cylinder as thermal stores.
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