# Heat Pump With the Indoor Kit in the Loft, Hornsey N8 > A Vaillant heat pump in Hornsey N8 with the indoor equipment put in the loft at the owner's request, running underfloor heating and hot water. *Climate Shield London — https://climateshieldlondon.co.uk/projects/heat-pump-loft-hornsey-n8/. Verbatim from the page; this is the same content, not a summary.* --- ![The outdoor unit on its own base in the garden.](https://climateshieldlondon.co.uk/assets/img/case/hornsey-n8-01-960.webp) # A heat pump with the indoor kit in the loft, in Hornsey The owner wanted no equipment in the living space, so the indoor side of the Vaillant heat pump went into the loft. Three days, gas boiler out, grant applied. [Price my heat pump](https://climateshieldlondon.co.uk/heat-pump-cost-london/#calc-hp) [WhatsApp us](https://wa.me/447875564437?text=Hi%20Climate%20Shield%2C%20I%20have%20seen%20your%20Hornsey%20N8%20job%20and%20would%20like%20a%20survey.) - Our own job, photographed on the day - Free survey and a fixed written price - MCS certified, NICEIC approved electrics ## Book a free survey Three taps and your number. Free, and nothing to sign. ## Accredited, and fitting the brands you know ![NICEIC approved contractor](https://climateshieldlondon.co.uk/projects/assets/img/accreditations/niceic-mark.webp) ![Gas Safe Register](https://climateshieldlondon.co.uk/projects/assets/img/accreditations/gas-safe-mark.webp) ![MCS certified](https://climateshieldlondon.co.uk/projects/assets/img/accreditations/mcs-mark.webp) ![RECC, Renewable Energy Consumer Code](https://climateshieldlondon.co.uk/projects/assets/img/accreditations/recc-mark.webp) ![TrustMark, Government Endorsed Quality](https://climateshieldlondon.co.uk/projects/assets/img/accreditations/trustmark-mark.webp) ![Vaillant](https://climateshieldlondon.co.uk/projects/assets/img/brands/vaillant.573f9864.webp) ![Clivet](https://climateshieldlondon.co.uk/projects/assets/img/brands/clivet.15efbad2.webp) ![Samsung](https://climateshieldlondon.co.uk/projects/assets/img/brands/samsung.3b6b3325.webp) ![Daikin](https://climateshieldlondon.co.uk/projects/assets/img/brands/daikin.ce47c11f.webp) ![Mitsubishi Electric](https://climateshieldlondon.co.uk/projects/assets/img/brands/mitsubishi-electric.2977d309.webp) ![Bosch](https://climateshieldlondon.co.uk/projects/assets/img/brands/bosch.7d80a7ce.webp) We replaced an ageing gas boiler in Hornsey N8 with a Vaillant aroTHERM plus air source heat pump running the underfloor heating and hot water, with the indoor equipment in the loft so none of it takes up living space. Three days on site, with the £7,500 grant taken off. Where the indoor kit goes is a choice, not a fixed rule. A loft works when it is boarded, reachable and protected from frost. ## The job at a glance Where Hornsey N8, London Borough of Haringey Heat pump Vaillant aroTHERM plus Indoor equipment In the loft, at the owner's request Heats Underfloor heating and hot water Grant £7,500 Boiler Upgrade Scheme Time on site Three days ## How the job was done Step by step, in the photographs taken on site. 1. ![The cylinder in the loft.](https://climateshieldlondon.co.uk/assets/img/case/hornsey-n8-02-960.webp) 1 Out of the living space The owner did not want a cylinder cupboard in the house, so the indoor equipment went into the loft. The layout was planned at the survey so the pipe routes up to it are short and hidden. 2. ![The outdoor unit on its own base in the garden.](https://climateshieldlondon.co.uk/assets/img/case/hornsey-n8-01-960.webp) 2 The outdoor unit on its own base The outdoor unit has its own base in the garden, level and clear of the ground, with the pipework taken to the house in one run. 3. 3 Underfloor heating suits a heat pump Underfloor heating runs at lower water temperatures than radiators, which is exactly where a heat pump is at its most efficient. ## Every photograph from the job 4 photographs, no faces, nothing staged. ![The outdoor unit on its own base in the garden.](https://climateshieldlondon.co.uk/assets/img/case/hornsey-n8-01-960.webp) The outdoor unit on its own base in the garden. ![The cylinder in the loft.](https://climateshieldlondon.co.uk/assets/img/case/hornsey-n8-02-960.webp) The cylinder in the loft. ![The controls and wiring in the loft, fixed to a board on the wall.](https://climateshieldlondon.co.uk/assets/img/case/hornsey-n8-03-960.webp) The controls and wiring in the loft, fixed to a board on the wall. ![The flow and return running along the side of the house.](https://climateshieldlondon.co.uk/assets/img/case/hornsey-n8-04-960.webp) The flow and return running along the side of the house. ## Thinking about a heat pump? What this job involved, applied to your own house. [Air source heat pumpsWhole-house heating with the £7,500 grantAir source heat pumps](https://climateshieldlondon.co.uk/air-source-heat-pumps-london/) [What a heat pump costsTen real quotations, before and after the grantWhat a heat pump costs](https://climateshieldlondon.co.uk/heat-pump-cost-london/) [Heat pump or air conditioning?Which one a house actually needsHeat pump or air conditioning?](https://climateshieldlondon.co.uk/air-conditioning-vs-air-source-heat-pump/) [Air-to-air heat pumpsHeats and cools, room by roomAir-to-air heat pumps](https://climateshieldlondon.co.uk/air-to-air-heat-pump-london/) ## Hornsey N8: questions about this job ### Can a hot water cylinder go in the loft? Yes, if the loft floor can take the weight, there is safe access for servicing, and the pipework is insulated against frost. We check all three at the survey. ### Is underfloor heating good with a heat pump? It is the best match. It heats a large surface at a low temperature, so the heat pump runs at its highest efficiency. ## More of our finished work Other jobs we have photographed. Tap one for the project. [All 34 projects](https://climateshieldlondon.co.uk/projects/) [![Daikin multi-split condenser in New Southgate N11](https://climateshieldlondon.co.uk/assets/img/projects/new-southgate-n11-ac-840.webp) Air conditioning N11 **New Southgate** Daikin multi-split condenser Wall-mounted on brackets rather than stood on the ground, which is usually what a narrow side return leaves you, and the refrigerant lines dropped in a single trunked run. 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Read the case study](https://climateshieldlondon.co.uk/projects/samsung-heat-pump-enfield-en3/)[![Vaillant aroTHERM plus 7 kW air source heat pump in Enfield EN3](https://climateshieldlondon.co.uk/assets/img/projects/enfield-en3-vaillant-840.webp) Heat pump EN3 **Enfield** Vaillant aroTHERM plus 7 kW air source heat pump Stood on rubber anti-vibration blocks on the existing patio slabs rather than on a new base, against the rear fence and beside the drainage the house already had. Read the case study](https://climateshieldlondon.co.uk/projects/vaillant-heat-pump-enfield-en3/)[![Air source heat pump with solar and battery storage in Tottenham N15](https://climateshieldlondon.co.uk/assets/img/projects/tottenham-n15-840.webp) Heat pump, solar and battery N15 **Tottenham** Air source heat pump with solar and battery storage The whole electrical side on one wall: inverter, battery modules and every isolator in reach, with the conduit dressed in straight runs so a fault years from now can be traced without stripping the wall. Read the case study](https://climateshieldlondon.co.uk/projects/heat-pump-solar-battery-tottenham-n15/)[![Solar panels on ballasted frames, flat roof in Cricklewood NW2](https://climateshieldlondon.co.uk/assets/img/projects/cricklewood-nw2-solar-1260.webp) Solar and battery NW2 **Cricklewood** Solar panels on ballasted frames, flat roof Low-tilt frames standing on the pebble finish of a new-build flat roof and held down by weight, so nothing is fixed through the waterproofing, with a clear strip left along the parapet to walk and work from. Read the case study](https://climateshieldlondon.co.uk/projects/solar-battery-cricklewood-nw2/)[![Samsung monobloc air source heat pump in Camden NW1](https://climateshieldlondon.co.uk/assets/img/projects/camden-nw1-840.webp) Heat pump NW1 **Camden** Samsung monobloc air source heat pump Levelled on packers on an existing tiled patio rather than bolted through it, so the tiling stays intact and the unit still sits dead flat. Read the case study](https://climateshieldlondon.co.uk/projects/samsung-heat-pump-sunamp-camden-nw1/)[![Samsung Gen 7 12kW high temperature heat pump in North Finchley N12](https://climateshieldlondon.co.uk/assets/img/projects/north-finchley-n12-840.webp) Heat pump N12 **North Finchley** Samsung Gen 7 12kW high temperature heat pump On wall brackets on the side of the house, clear of the ground, which keeps the side passage usable and the coil away from leaves and splashback. Read the case study](https://climateshieldlondon.co.uk/projects/samsung-heat-pump-north-finchley-n12/)[![Cascade pair of air source heat pumps in Barnet EN4](https://climateshieldlondon.co.uk/assets/img/projects/barnet-en4-cascade-840.webp) Heat pump EN4 **Barnet** Cascade pair of air source heat pumps Two machines in cascade on a flat roof, flow and return in insulated copper with isolating valves on each leg, so one can be shut down and worked on while the other keeps the building warm. Read the case study](https://climateshieldlondon.co.uk/projects/cascade-heat-pump-barnet-en4/) ## Book a free heat pump survey We measure every room, calculate the heat loss, check the radiators and the space for a cylinder, and send a written price with the grant already taken off. No cost and no obligation. Call 020 3393 1331 [WhatsApp us](https://wa.me/447875564437?text=Hi%20Climate%20Shield%2C%20I%20have%20seen%20your%20Hornsey%20N8%20job%20and%20would%20like%20a%20survey.) Monday to Friday 9am to 7pm, Saturday 10am to 3pm, Sunday closed Page updated 24 September 2026