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Daikin Altherma 3 H HT EPRA14DV3 vs Gledhill Stainless Lite Plus 150

The Daikin Altherma 3 H HT EPRA14DV3 is a r32 monobloc high-temperature air source heat pump, class 14. The Gledhill Stainless Lite Plus 150 is a indirect unvented hot water cylinder, 150 litres.

Last reviewed 13 September 2026

Specifications side by side

Daikin Altherma 3 H HT EPRA14DV3Gledhill Stainless Lite Plus 150
Dimensions990 x 1270 x 460 mm (H x W x D) (outdoor unit)1118 mm high x 550 mm diameter
Weight146 kg (single-phase) (outdoor unit)26 kg empty, 174 kg full
Heat output10.17 kW (nominal heating)-
SCOP4.51-4.71 (35C flow), 3.57-3.58 (55C flow)-
RefrigerantR32, 4.2 kg charge-
Sound pressure43 dBA (heating)-
Max flow temperature70C-
Capacity-150 litres
Heat-up time-25 minutes
Relief valve setting-6 bar and 95C
Immersion heater-3kW incoloy immersion, back-up
ErP rating-B

Sources: Daikin Altherma 3 H HT EPRA14DV3, Gledhill Stainless Lite Plus 150. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Altherma 3 H HT EPRA14DV3 if...

A high-temperature monobloc heat pump reaching a 70C flow, aimed squarely at replacing a boiler on an existing radiator system without upgrading radiators. Its class 14 size gives around 10.2kW of heat output, suiting a three or four-bed house.

Full Altherma 3 H HT EPRA14DV3 specifications →

Buy or hire the Stainless Lite Plus 150 if...

A 150 litre indirect cylinder from Gledhill's Stainless Lite Plus range, sized for a small to medium house. Its corrugated coil reheats in about 25 minutes, and the range carries a 25 year guarantee on the cylinder body.

Full Stainless Lite Plus 150 specifications →

Common questions

What is the difference between the Daikin Altherma 3 H HT EPRA14DV3 and the Gledhill Stainless Lite Plus 150?

The Daikin Altherma 3 H HT EPRA14DV3 is a r32 monobloc high-temperature air source heat pump, class 14; the Gledhill Stainless Lite Plus 150 is a indirect unvented hot water cylinder, 150 litres.

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