If you own a rental in Exeter and you're searching for a boiler grant, you're looking at three separate pots of money with three different rulebooks — and the one with the biggest headline number is the one least likely to pay for a boiler. Here's what each actually covers for a Exeter landlord in 2026.
ECO4 — the "free boiler" scheme. This is the one people mean by a free boiler grant. It's funded by energy suppliers, not the council, and it can fully fund a replacement heating system on a private rental where the property is EPC band D–G and the *tenant's* household qualifies — either through a means-tested benefit (Universal Credit, Pension Credit and a short list of others) or through Exeter's own flexible-eligibility criteria. Nothing about your income as a landlord enters into it. ECO4 closes on 31 December 2026, and installers need roughly 10–18 weeks end-to-end, so the practical deadline to start is around September 2026.
We haven't independently confirmed a current ECO4 Statement of Intent for Exeter, which is the document that opens the flexible route for households not on a qualifying benefit. Councils publish, revise and occasionally pause these without notice and there's no central register — worth a direct check with Exeter before writing the route off.
The Boiler Upgrade Scheme — £7,500, but not for a boiler. Despite the name, BUS funds a *heat pump* (or in narrow cases a biomass boiler). It will not pay a penny towards a new gas or oil boiler, which is the single most common misunderstanding behind a "Exeter boiler grant" search. What it does do is pay £7,500 straight to your installer against an air source or ground source heat pump, with no household income or benefits test at all, and — since April 2026 — no requirement for a valid EPC with outstanding insulation recommendations. If the property is off the mains gas grid and currently heated by oil or LPG, the grant rises to £9,000 for the same two heat pump types — a temporary uplift running 21 July 2026 to 31 March 2027, not a permanent change to the standard rate. One grant per property, applied for by the installer, not by you.
Warm Homes: Local Grant — through Exeter itself. Exeter holds a DESNZ funding allocation for WHLG delivery to 2028, so there is a live council-run route here for low-income households in EPC D–G properties. For a landlord the rule that matters is the sequencing one: your first qualifying property is fully funded, every subsequent property typically needs a 50% landlord contribution capped around £7,500 — so if you own more than one eligible Exeter rental, which one you put forward first is worth real money.
Exeter is one of several district councils inside Devon, and each district can adopt slightly different flexibility around the ECO4 rules. That matters if you own rentals across Devon — a property one district over could qualify under criteria that don't apply in the neighbouring one.