# Samsung Heat Pump, Enfield EN3 | Case Study

> A Samsung Gen 7 8kW heat pump with a 300-litre cylinder and two heating zones in Enfield EN3: what was fitted, where it went and why.

*Climate Shield London — https://climateshieldlondon.co.uk/projects/samsung-heat-pump-enfield-en3/. Verbatim from the page; this is the same content, not a summary.*

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![The Samsung unit tight against the side wall on anti-vibration feet.](https://climateshieldlondon.co.uk/assets/img/case/enfield-en3-01-960.webp)

# A Samsung heat pump with two heating zones in Enfield

An 8kW Samsung Gen 7 sized from a heat loss survey, a 300-litre cylinder for a family's hot water, and the house split into two zones so each part is heated on its own schedule.

[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

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## 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 fitted a Samsung Gen 7 8kW air source heat pump to a family home in Enfield EN3, with a Joule 300-litre unvented cylinder and a two-zone heating system. The size came from a room-by-room heat loss calculation, not from the size of the old boiler.

The unit runs on R290, a refrigerant with a global warming potential of 3, and carries Samsung's 7-year warranty through our approved installer status. The cylinder's stainless inner vessel has a 25-year warranty.

## The job at a glance

Where

Enfield EN3, London Borough of Enfield

Heat pump

Samsung Gen 7 8kW, R290 refrigerant

Hot water

Joule 300-litre unvented cylinder

Controls

Two heating zones, Samsung wired controller

Also fitted

50-litre buffer tank, magnetic filter, expansion vessel, anti-freeze valves

Paperwork

MCS certificate, Building Control, DNO notification, grant documents

## How the job was done

Step by step, in the photographs taken on site.

1. 1 Sized from the heat loss, not the boiler The survey measured every room and worked out how much heat each one loses on a cold day. That total, not the rating of the gas boiler it replaced, is what set the heat pump at 8kW. A heat pump sized too big cycles on and off and wears out sooner; one sized too small cannot keep up in January. The calculation is how you avoid both.
2. ![The Samsung unit tight against the side wall on anti-vibration feet.](https://climateshieldlondon.co.uk/assets/img/case/enfield-en3-01-960.webp)   2 Tight to the flank wall The outdoor unit stands against the side wall on anti-vibration feet. It uses none of the garden anyone would actually sit in, and the pipe run to the cylinder inside stays short, which keeps the heat losses on the way down.
3. ![The 300-litre cylinder, buffer and zone valves in the cupboard.](https://climateshieldlondon.co.uk/assets/img/case/enfield-en3-02-960.webp)   3 Two zones, two schedules The house is split into two heating zones with their own controls, so the part of the house in use can be warm without heating the part that is not. The 50-litre buffer tank keeps the heat pump running smoothly when one zone closes and the other stays open. Anti-freeze valves on the outdoor pipework drain it if the power is ever off in a freeze, so a winter power cut cannot split a pipe.

## 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

### Why does a heat pump need a buffer tank?

Not every system does. Where the heating is split into zones, a buffer gives the heat pump a steady volume of water to heat when only one small zone is calling, so it runs in long even cycles instead of starting and stopping.

The survey decides whether yours needs one.

### Can a heat pump heat a 300-litre cylinder?

Yes. A cylinder made for a heat pump has a larger coil so it heats properly at the lower temperatures a heat pump produces. It is sized for the household, and 300 litres suits a family home with a bath and several showers.

## 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/)[![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/)[![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.

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Page updated 24 September 2026