£9,000 off a heat pump: the Boiler Upgrade Scheme changes and what they mean for local homeowners
The biggest heating story this week is the government’s announcement that the Boiler Upgrade Scheme (BUS) grant will increase by 20%—from £7,500 to £9,000—for air-to-water and ground-source heat pumps from 21 July 2026. The uplift is aimed squarely at households currently using heating oil across England and Wales, with a particular focus on rural homes that aren’t on the gas grid.
This isn’t just a headline about “more money”; it changes the maths, the timing, and the decision-making for anyone in places like Bordon, Whitehill, Liphook, Alton, Farnham and Haslemere where a meaningful number of properties are off-gas, on oil tanks, or have mixed heating setups.
What happened (and when it takes effect)
According to GOV.UK, the government is increasing the BUS grant from £7,500 to £9,000 for air-to-water and ground-source heat pumps. The change applies from 21 July 2026 and is designed to encourage faster uptake of low-carbon heating by specifically supporting households that currently rely on heating oil.
It also sits within the wider Warm Homes Plan direction of travel—more funding, more targeted support, and more effort to move homes away from fuels whose prices can swing dramatically from one season to the next.
Why it matters: oil-heated homes really are a different case
If your home is on mains gas in a built-up area, changing the boiler is relatively straightforward and (comparatively) cheap. Oil-heated homes are different. Oil systems typically mean:
- Higher fuel price volatility (you buy in bulk; prices move quickly).
- Storage and delivery (tanks, access, safety, and the inevitable “have we got enough left?” calculation).
- Older heat emitters (many oil homes have radiators installed for higher water temperatures).
- More rural properties where insulation, layouts and outbuildings vary widely.
That’s exactly why the BUS uplift targets oil. In parts of Hampshire and Surrey, you’ll see plenty of homes on the edges of towns or in villages around Liphook and Haslemere that either never had mains gas, or have older properties where oil became the default. Around Alton and the surrounding hamlets, oil tanks are still common. Even in and around Farnham, you’ll find pockets of off-gas dwellings and larger properties where the existing system is due a rethink.
What it means technically (in plain English): why a heat pump isn’t a “boiler swap”
A heat pump is not a like-for-like replacement for an oil boiler. A boiler makes heat by burning fuel. A heat pump moves heat—it pulls low-grade heat from the outside air (or the ground) and upgrades it to a useful temperature for heating and hot water.
The key technical points homeowners need to understand
- Lower flow temperatures: A heat pump works best when your heating system runs at lower water temperatures than a typical oil boiler. Many oil systems are set up for 70–80°C flow; heat pumps often aim closer to 35–55°C depending on design and hot water requirements.
- Emitter sizing matters: Lower temperatures mean you may need larger radiators, additional radiators, or sometimes underfloor heating in certain rooms to deliver the same comfort.
- Insulation is not optional: Technically you can fit a heat pump in a poorly insulated house, but it will run longer, cost more, and struggle on cold days. Loft insulation, cavity wall insulation (where suitable), and good draught-proofing make the system cheaper to run and more comfortable.
- Hot water cylinder requirements: Most heat pump systems work with a cylinder rather than a combi-boiler setup. If you currently have an oil boiler with a cylinder, you may be well placed; if you’re on a combi (less common with oil, but not unheard of), you’ll need space and pipework for a cylinder.
- Electrical supply: Heat pumps run on electricity, so the incoming supply, consumer unit capacity, and external isolator arrangements need checking. Sometimes an upgrade is required; sometimes it isn’t.
For homeowners in Bordon and Whitehill, a common situation is a 1990s–2000s property with reasonable insulation but radiators sized for a boiler. Technically those homes can be excellent candidates, but the design needs doing properly—heat loss calculations room by room, correct flow temperatures, and careful commissioning.
What the £9,000 grant means financially: the numbers that change
The BUS grant is claimed by the installer (not the homeowner) and taken off the cost of the installation. The uplift to £9,000 is significant because the “gap” between an oil boiler replacement and a correctly designed heat pump system is often what stops people acting.
Very broadly (and every home is different), homeowners tend to compare:
- Oil boiler replacement: lower upfront cost, familiar system, but continued exposure to oil price swings and ongoing maintenance of a combustion appliance.
- Heat pump installation: higher upfront cost, potentially lower running costs if the home is suitable and the system is designed well, plus reduced reliance on delivered fuel.
That extra £1,500 of support can be the difference between “not this year” and “actually yes,” especially where you were already planning to spend money on a failing oil boiler, tank compliance work, or repairs to an ageing flue system.
Running costs: the part that needs honest discussion
Heat pumps can be economical, but they aren’t magic. The running cost depends on:
- Your home’s heat loss (insulation, draughts, glazing, layout)
- Emitter suitability (radiators/UFH sized for lower temperatures)
- Flow temperature and controls setup (weather compensation, zoning, smart controls)
- Electricity tariff and usage patterns
Oil prices are volatile; electricity prices can be high, but heat pumps deliver multiple units of heat for each unit of electricity used (their efficiency is often described by COP/SCOP). If your system can run at low temperatures and your home holds heat well, it’s where the financial case becomes compelling.
If you’re in a larger, older property around Haslemere or the rural fringe between Liphook and Farnham, the financial case hinges on design and fabric improvements. Spend on insulation and emitter upgrades isn’t “extra”; it’s often the thing that makes a heat pump perform as intended.
Local relevance: why this change lands differently in Bordon, Whitehill, Liphook, Alton, Farnham and Haslemere
This policy shift is clearly set up to help rural and off-gas areas. In our patch, that matters because the housing stock is mixed:
- Bordon & Whitehill: a spread of newer estates and older homes. Many are relatively straightforward for heat loss and access, but radiator sizing and hot water cylinder arrangements still need checking properly.
- Liphook: lots of properties on the outskirts and nearby villages with oil or LPG, plus a mix of extensions and converted spaces. These can be great candidates after a proper survey.
- Alton: town properties alongside rural homes where oil tanks and older heating systems are common. Access for external units and planning considerations can vary street by street.
- Farnham: pockets of conservation areas and character properties. Noise placement, listed-building considerations, and aesthetics can become part of the design conversation.
- Haslemere: plenty of larger, older houses where insulation and system design matter most. Getting the heat pump sized correctly (not oversized, not undersized) is the difference between comfort and constant running costs.
The practical point: the £9,000 grant will push more households to “go now.” That means more demand for surveys, qualified installers, and grid checks. If you’re thinking about it, the technical homework becomes more important, not less.
What homeowners should do next: a practical plan that avoids expensive mistakes
1) Check whether you’re likely to qualify under the oil-focused uplift
The announcement states the uplift targets households on heating oil in England and Wales. Eligibility rules can be specific, and schemes often evolve. The best next step is to gather the details you’ll be asked for anyway:
- What fuel you currently use (oil, LPG, direct electric, etc.)
- What system you have now (boiler model, cylinder size, control type)
- Your home type and age, and any insulation upgrades already done
- Space available for an external unit and (if needed) a cylinder
2) Get a heat loss survey before you discuss “what size heat pump”
The most common technical error is choosing a heat pump size based on rough rules of thumb or the size of the existing boiler. Oil boilers are frequently oversized; replacing like-for-like by kilowatts is a recipe for poor efficiency.
A proper room-by-room heat loss calculation tells you:
- How much heat each room needs on a cold design day
- Whether your current radiators can deliver enough heat at lower temperatures
- What flow temperature the system can realistically run at
If you’re in a typical three-bed in Whitehill with decent loft insulation, the survey often shows you can run lower temperatures than you think—sometimes with only a handful of radiator upgrades. In an older property outside Alton, it might point towards staged improvements: insulation first, then emitters, then the heat pump.
3) Decide whether to do fabric improvements first (often the smartest spend)
Before committing to new plant, spend where it reduces heat loss permanently. Typical “high impact” items include:
- Loft insulation top-up and hatch draught-proofing
- Cavity wall insulation where suitable (and only after checks)
- Suspended floor insulation in older homes (where accessible)
- Reducing draughts around doors and older windows
These improvements don’t just help a heat pump; they also improve comfort immediately, whichever heating system you choose.
4) Think about your hot water usage and cylinder space
Heat pumps typically heat hot water more slowly than a boiler. That’s normal. Therefore cylinder size and coil design matter. If your household uses a lot of hot water (large baths, multiple showers, busy mornings), you need a system designed for that reality—not a “one size fits all” cylinder squeezed into a cupboard.
5) Check the outdoor unit location properly (noise, neighbours, aesthetics)
Modern heat pumps are quiet, but they are not silent. Placement matters for neighbour relations and comfort. In denser streets in Farnham or close boundaries in parts of Bordon, careful positioning and vibration isolation can make a big difference. Also consider airflow: the unit needs to breathe. Boxing it in to hide it usually harms performance.
6) Plan your timing around 21 July 2026
The grant uplift starts on 21 July 2026. If your oil boiler is limping along, you have a decision to make:
- If it’s safe and serviceable, you may choose to maintain it briefly and plan a properly designed heat pump installation that aligns with the uplift.
- If it’s unsafe or unreliable, you may need an interim solution—sometimes a like-for-like repair is the sensible choice while you prepare. Sometimes it’s not.
The key is not to panic-buy equipment. Heat pumps reward planning: survey, design, emitter checks, then install.
What this change means for the local market (and why acting early helps)
When grants increase, enquiries follow immediately. That has real-world effects: longer lead times for surveys, installer availability, and sometimes delays in related trades (electricians, scaffolders, builders for cylinder cupboards, etc.).
Across Liphook, Haslemere and the rural areas between the towns, many properties require a little more design time, and some need phased upgrades. The uplift makes more projects viable, but it also means the best outcomes will come to homeowners who get the technical groundwork done early rather than rushing at the last minute.
If you’re unsure whether your home is a good candidate, the right next step is a survey and an honest appraisal—not a sales pitch. A well-designed heat pump system should leave you with steady indoor temperatures, sensible running costs, and controls that you understand.
Book a heat pump suitability survey and BUS grant guidance with Embassy Gas: https://www.embassygas.com/book