# Vaillant Heat Pump, Enfield EN3 | Case Study > A 7kW Vaillant aroTHERM plus replacing a gas boiler in Enfield EN3 in three days, with the grant approved in 48 hours. What went where, in photographs. *Climate Shield London — https://climateshieldlondon.co.uk/projects/vaillant-heat-pump-enfield-en3/. Verbatim from the page; this is the same content, not a summary.* --- ![The aroTHERM plus on rubber blocks on the existing patio, against the rear fence.](https://climateshieldlondon.co.uk/assets/img/case/enfield-en3-vaillant-01-960.webp) # Gas boiler out, heat pump in in three days in Enfield An old gas boiler replaced with a 7kW Vaillant aroTHERM plus, the £7,500 grant approved in two days, and the cylinder put where the old hot water came from. [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%20Enfield%20EN3%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 old gas boiler in Enfield EN3 with a 7kW Vaillant aroTHERM plus air source heat pump and a new hot water cylinder, in three days on site. The £7,500 Boiler Upgrade Scheme grant was approved within 48 hours of the application. The owner is retired and wanted lower running costs without a long disruption. Three days is what a straightforward boiler swap to a heat pump takes when the survey has done its job. ## The job at a glance Where Enfield EN3, London Borough of Enfield Heat pump Vaillant aroTHERM plus 7kW Replaced An old gas boiler Grant £7,500 Boiler Upgrade Scheme, approved within 48 hours Time on site Three days ## How the job was done Step by step, in the photographs taken on site. 1. ![The aroTHERM plus on rubber blocks on the existing patio, against the rear fence.](https://climateshieldlondon.co.uk/assets/img/case/enfield-en3-vaillant-01-960.webp) 1 On the patio that was already there The outdoor unit stands on rubber anti-vibration blocks on the existing patio slabs rather than on a new concrete base, against the rear fence and next to the drainage the house already had. The defrost water has somewhere to go, and nobody had to dig up the garden. 2. ![The new cylinder and controller in the cupboard the old hot water came from.](https://climateshieldlondon.co.uk/assets/img/case/enfield-en3-vaillant-02-960.webp) 2 The cylinder where the old hot water was Inside, the new cylinder went into the cupboard the old boiler's hot water came from, so no new space had to be found. The controller is at eye height, and the valves are grouped where an engineer can reach them without taking anything apart. 3. 3 The grant, handled We applied for the £7,500 Boiler Upgrade Scheme grant on the owner's behalf and it came back approved in two days. The grant comes off the price before you pay; you never claim it back yourself. ## 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/) ## Enfield EN3: questions about this job ### How long does it take to replace a gas boiler with a heat pump? For a typical house, about three days on site, as here. The first day takes the old system out and sets the outdoor unit, the second fits the cylinder and pipework, the third fills, commissions and shows you how it works. A bigger job, with new radiators or zones, takes longer, and the survey tells you how long before you agree to anything. ### Do I have to apply for the £7,500 grant myself? No. The installer applies, and the grant is taken off the price you pay. On this job the approval came through in 48 hours. ## 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. Read the case study](https://climateshieldlondon.co.uk/projects/daikin-multi-split-new-southgate-n11/)[![Air source heat pump with roof-mounted solar in Winchmore Hill N21](https://climateshieldlondon.co.uk/assets/img/projects/winchmore-hill-n21-840.webp) Heat pump and solar N21 **Winchmore Hill** Air source heat pump with roof-mounted solar The panels sit across the rear pitch and the heat pump at the side of the house, which is the pairing that lets the pump run on its own generation through the middle of the day. Read the case study](https://climateshieldlondon.co.uk/projects/heat-pump-solar-battery-winchmore-hill-n21/)[![Samsung monobloc air source heat pump in Wood Green N22](https://climateshieldlondon.co.uk/assets/img/projects/wood-green-n22-840.webp) Heat pump N22 **Wood Green** Samsung monobloc air source heat pump Stood on a levelled base built up out of the border rather than on soil, so the feet stay out of standing water and the unit does not settle out of level over a winter. Read the case study](https://climateshieldlondon.co.uk/projects/samsung-heat-pump-wood-green-n22/)[![Samsung monobloc air source heat pump in Enfield EN3](https://climateshieldlondon.co.uk/assets/img/projects/enfield-en3-840.webp) Heat pump EN3 **Enfield** Samsung monobloc air source heat pump Set tight against the flank wall on anti-vibration feet, where it takes up none of the usable garden and the pipe run to the cylinder stays short. Read the case study](https://climateshieldlondon.co.uk/projects/samsung-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/)[![Samsung monobloc air source heat pump in Leytonstone E11](https://climateshieldlondon.co.uk/assets/img/projects/leytonstone-e11-840.webp) Heat pump E11 **Leytonstone** Samsung monobloc air source heat pump On its own slab set clear of the fence line, with the condensate taken away below ground level instead of being left to run across the paving and freeze. Read the case study](https://climateshieldlondon.co.uk/projects/samsung-heat-pump-leytonstone-e11/) ## 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%20Enfield%20EN3%20job%20and%20would%20like%20a%20survey.) 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