Hot Water Solutions
Mains-pressure hot water, on demand, no tank.
Forget bulky cylinders and combi-boiler cliffs. We install the Sunamp Thermino, a compact, phase-change heat battery that delivers instant, mains-pressure hot water to every outlet in your home, with a 10-year warranty.
- 4×
- Smaller than a cylinder
- 10 yr
- Warranty
- 50+ yr
- Design life
- 1 day
- Typical install
The Sunamp Thermino
Instant, mains-pressure hot water to every outlet in your home.
- Up to 4× smaller than an equivalent cylinder
- Mains-pressure hot water, on demand
- Works with solar PV and off-peak tariffs
- 10-year warranty, zero maintenance
Why families switch
Three things your current hot water system is doing to you.
Cylinders that run cold
Long showers, back-to-back baths: there's a tank, and once it's empty you wait. Standing heat loss costs you every hour of the day.
Combis that drop pressure
Open a second tap and the shower turns to a trickle. Run a dishwasher mid-morning and the kitchen sink does the same.
Gas systems with annual baggage
Safety checks, anode rods, drain-downs, service intervals. None of which apply when there's no gas and no water sitting in a tank.
Sunamp Thermino
- 4×
- Smaller than a cylinder
- 3.5–14 kWh
- Capacity range
- 10 yr
- Warranty
- 50+ yr
- Design life
The product
The Sunamp Thermino
A wall-hung or floor-stood heat battery that stores heat in phase-change material instead of water. Capacities from 3.5 kWh to 14 kWh, sized to your home, not the cupboard you happen to have.
- Up to 4× smaller than an equivalent cylinder
- Mains-pressure hot water, on demand
- Works with solar PV and off-peak tariffs
- 10-year warranty · zero maintenance
Go deeper
Pick a question, get a straight answer.
Three short explainers that cover the questions we get asked most.
How it works
The phase-change explainer
How the Sunamp stores more heat than water, in plain English.
Read explainerWorks with solar
Bank your sunshine
Pair with rooftop PV and stop exporting at pennies. Capture your surplus as stored hot water instead.
Read explainerWhy switch
The case for ditching the cylinder
Honest side-by-side comparison vs a traditional cylinder and an electric boiler.
Read explainerSuitability
Built for any home, yes, even yours.
The Sunamp suits a wider range of homes than any cylinder ever could. Pick the type closest to yours and let us tell you which Thermino we'd recommend.
See coverage across the North WestFamily homes
Most of all where you're fed up running out of hot water at peak times.
Flats & apartments
Where every cubic foot counts and a cylinder simply doesn't fit.
Solar PV homes
Capture surplus generation as stored heat instead of exporting at pennies.
Renovation & new-build
Plan it in early, because it changes what you can do with the airing cupboard.
Not quite ready to book?
Take the full brochure away with you: sizes, colours, pricing and everything our systems can do. Or book a free home survey whenever the time is right. No pressure, no hard sell.
What every install includes
Standard with us. Extra with everyone else.
10-year warranty
Manufacturer-backed cover on the thermal core, included in every install.
Our own engineers
No subcontractors. The team that quotes is the team that installs.
Free home survey
An engineer comes to you, sizes the system on-site, and quotes the same day.
Works with off-peak & solar
Bank hot water when energy is cheapest. Bills you'll actually want to read.
Real customers, real installs
Verified Google reviews from Sunamp customers.
“Just had our Sunamp Boiler fitted and we couldn't be more pleased with it. Tom came to the house after we got in touch with North West Electric Radiators. He went through everything with us, explaining everything in detail, advising us on what size boiler would be right for us and answering any questions we had. We arranged the installation for today which Richard and Cameron done for us. They both done a very professional job and left everywhere clean and tidy. I would highly recommend this company to anyone looking for an electric boiler and Tom, Richard and Cameron, thank you all very much from your expert advice to the final installation. Dave and Diane xx”
David Strode
Verified Google review
Quick answers
What homeowners ask first.
Got one we haven't covered? Pick up the phone, we'd rather talk it through than write you a brochure.
0151 272 1208Ready to put a kettle-sized box where your cylinder used to be?
Book a free home survey and we'll size, plan, and quote in a single visit. No obligation, no hard sell.