Luthmore is accepting registrations for installer training to prepare installers ahead of its boiler rolling off the production line later this year, the Chartered Institute of Plumbing and Heating Engineering (CIPHE) reported on 29 July 20251. The Luthmore Boiler was introduced at June 2025's InstallerSHOW1.
The unit is tankless and flueless, and delivers instant hot water at 30kW and central heating at 10kW, which the company describes as the same level of performance as traditional combi boilers1. It is powered by six non-rare earth Lithium Iron Phosphate batteries, so grid and solar energy can be stored at off peak tariff times and released through the day1. Luthmore states a total purchase and installation cost from as little as £5,000 excluding VAT1.
The company positions the product for small to medium sized homes where heat pumps are not a suitable option, and says it is compatible with existing pipework and radiators on a plug and play basis1. Luthmore says the boiler requires minimal space and set-up, which it links to less time on site and less disruption to clients1. It adds that backers include installers and housing developers, that it has attracted interest from a leading UK energy provider, and that it drew sales enquiries from plumbing businesses, developers and distributors at InstallerSHOW 20251. Luthmore is an Industrial Associate of CIPHE1.
Will Jameson, Commercial and Corporate Director at Luthmore, said:
"After four years of development and rigorous testing, we are so excited to bring this pioneering technology to market. We represent a new way of heating homes in a cost effective, sustainable way, without sacrificing the performance and ease of set-up associated with a classic combi boiler."
Al Benton-Jones, Director of Duck Plumbing, said the design allows an installer to carry out the installation quickly, describing it as "plug and play on another level"1.
| Feature | Luthmore Boiler, as stated by Luthmore |
|---|---|
| Hot water output | 30kW |
| Central heating output | 10kW |
| Storage | Six non-rare earth Lithium Iron Phosphate batteries |
| Flue | None (flueless) |
| Hot water cylinder | None (tankless) |
| Stated purchase and installation cost | From £5,000 excluding VAT |
Why it matters for households
For a home that cannot take a heat pump, the claim being made here is a gas combi replacement that runs on stored electricity rather than gas, using the pipework and radiators already in place1. That matters for household energy independence: a battery in the home can take power at off peak tariff times and release it later, which shifts when a household buys its energy rather than how much it uses1. The stated £5,000 excluding VAT figure is a purchase and installation cost, not a running cost, and no running cost, efficiency figure or tariff comparison appears in the announcement1. No independent performance data, certification or field trial results are given, and no confirmation of which properties or heating systems the unit has been tested in has been reported1. The installer training route is relevant to how such products reach homes, and sits alongside existing installer qualifications and training requirements.
What happens next
Production is stated to begin later in 2025, with installer training registrations open now1. No date has been reported for the first installations, for a full specification, or for confirmation of which homes the boiler is approved for1.