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Detached property, hosted by Andy

Stiebel Eltron air source heat pump in a pre 1920 property

Andy

We decided that we wanted to install a heat pump around 10 years ago, as part of a major renovation project to a c.1600 cornish cottage. We did a lot of research and we are pleased with our system. I have been surprised about the amount of misleading and unhelpful information out there and want to do my bit to communicate truth about efficient heating systems.

Joined the network in 2024

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About this property

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Callington, PL17

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3 bedrooms

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Air source heat pump

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Installed by Eco NRG

Installing the system

Old traditional Cornish stone cottage with extensions (EPC F).  Ongoing major renovation and retrofitting project.  300mm+ loft insulation.  Double glazing throughout.  No EWI or IWI (wall insulation) on solid stone walls.  No cavity wall insulation (1970's extension).  Decided to install UFH throughout - this was a big and disruptive job, but glad we did it.  Have plans for another extension.  We have done a lot of the building and prep work ourselves.  The actual installation week went very well.  Also installed: 3.84kWp solar array and a 9.5kWh/3kW AC coupled Givenergy home battery system.  Currently on Octopus Cosy time-of-use tariff.

Living with a heat pump

Stiebel Eltron ASHP (WPL25AS; A2/W35: 8.32kW; A-7/W35: 13.05kW); positioned 13m from the property (underground insulated pipes); 100-litre buffer tank; 300-litre DHW tank; DHW secondary return installed; heating circuit: UFH throughout ground floor, radiators first floor; Heatmiser controls for the heating circuit.  Very pleased with: comfort and hot water, efficiency, reduced emissions, and cost effectiveness.

Hosted by Andy

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Visiting my heat pump: Happy to receive questions.

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Accessing the venue

Limited off-road parking at the property