Most heat pump cylinders are unvented, meaning they run at mains water pressure and give strong flow from every tap without a cold water tank in the loft. Unvented cylinders have safety controls that must be fitted and checked by someone qualified to work on them. We size the cylinder from your household and bathrooms, confirm your mains water supply can support it, and plan the space, pipework and discharge route at the survey.
We check mains water pressure and flow at each County Fermanagh property before choosing a cylinder. Older houses in County Fermanagh with loft tanks can usually have them removed when an unvented cylinder is fitted. In terraced homes around County Fermanagh and across County Fermanagh, slimline cylinders can fit spaces a standard model cannot.
Who it suits
- Homes with solar PV that want to store daytime electricity as hot water
- Households with older vented cylinders and loft tanks who want mains-pressure showers
- Homes replacing a combi boiler that need space found for a cylinder
- Larger families or homes with two or more bathrooms
Grants and rules for heat pumps in Northern Ireland
Northern Ireland does not have a dedicated heat pump grant for homeowners at present, and the Boiler Upgrade Scheme does not apply here. Heat pumps have sometimes been funded through the Northern Ireland Sustainable Energy Programme, so it is worth checking what is open when you enquire about a home in County Fermanagh.
Installing heat pumps has been zero-rated for VAT in Northern Ireland since 1 May 2023, in line with the rest of the UK, until 31 March 2027. Northern Ireland has its own permitted development rules and building regulations, and we confirm what applies to your property at survey.
Heat pump hot water cylinders prices in County Fermanagh
The ranges below are typical installed prices for homes in County Fermanagh, including VAT. A survey sets the exact figure, because two similar-looking houses in County Fermanagh can need quite different radiators and pipework.
| Work | Guide price |
|---|---|
| Heat pump hot water cylinder (supplied and fitted) | £1,200–£2,150 |
Supplied and fitted, inc VAT. Included in every full system price.
Towns we cover in County Fermanagh
We cover 3 towns in County Fermanagh for heat pump hot water cylinders. Each links to local guide prices and the grant position for Northern Ireland.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Enniskillen | BT74 | Irvinestown | 7 h 18 min |
| Irvinestown | BT94 | Enniskillen | 7 h 16 min |
| Lisnaskea | BT92 | Enniskillen | 7 h 19 min |
Heat pump hot water cylinders questions
I have a combi boiler. Where will the cylinder go?
Moving from a combi to a heat pump means finding space for a cylinder, usually somewhere around 600 mm square and up to about 2 m tall. Common choices are a bedroom or landing cupboard, a utility room, under the stairs or an integral garage. The surveyor looks at your layout and suggests options, including slimline models where space is tight.
Does a heat pump cylinder need servicing?
Yes. An unvented cylinder's safety devices should be checked every year, including the relief valves, the expansion vessel charge and the discharge pipework. This is normally done as part of the annual heat pump service, and it is often a condition of the cylinder manufacturer's warranty. Keep the cylinder paperwork with your heat pump handover documents.
How much does a heat pump cylinder cost?
A heat pump hot water cylinder has a guide price of £1,200–£2,200, installed and including VAT. In a full heat pump installation the cylinder is already included in the system guide price, so this figure mainly applies where a cylinder is replaced on its own. Capacity, coil design and the pipework needed affect where your price sits.
Can I keep my existing hot water cylinder with a heat pump?
Usually not. Cylinders designed for boilers have a small coil that cannot transfer heat quickly at heat pump temperatures, so the water would reheat slowly and efficiency would suffer. A heat pump cylinder has a much larger coil. The new cylinder can often go in the same cupboard, though, if there is enough height and floor space.