Head to head
Samsung EHS Mono HT Quiet 12.0kW vs Telford Tempest 300 Indirect
The Samsung EHS Mono HT Quiet 12.0kW is a r32 monobloc air source heat pump, 12.0 kw heat output. The Telford Tempest 300 Indirect is a indirect unvented hot water cylinder, 300 litres.
Last reviewed 13 September 2026
Specifications side by side
| Samsung EHS Mono HT Quiet 12.0kW | Telford Tempest 300 Indirect | |
|---|---|---|
| Dimensions | 1018 x 1270 x 530 mm (H x W x D) | 1750 mm high x 580 mm diameter |
| Weight | 137 kg | 61 kg |
| Heat output | 12.0 kW | - |
| SCOP | 4.90 (35C flow), 3.78 (55C flow) | - |
| Refrigerant | R32, 3.3 kg charge | - |
| Sound pressure | 46 dB(A) standard, 35 dB(A) night mode | - |
| Max flow temperature | 70C | - |
| Capacity | - | 300 litres |
| Material | - | 2304 duplex stainless steel |
| Relief valve setting | - | 7 bar / 90C |
| Immersion heater | - | 3kW, 240V single phase, included |
| Warranty | - | Lifetime guarantee on the body with annual service, 2 year component guarantee |
Sources: Samsung EHS Mono HT Quiet 12.0kW, Telford Tempest 300 Indirect. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the EHS Mono HT Quiet 12.0kW if...
A 12.0kW unit for a larger house, with the highest SCOP quoted across the EHS Mono HT Quiet range at 4.90 on a 35C flow. It shares the same cabinet size as the 8kW model but weighs 11 kg more for the larger compressor.
Full EHS Mono HT Quiet 12.0kW specifications →Buy or hire the Tempest 300 Indirect if...
A 300 litre indirect cylinder for a larger household or a property with high simultaneous hot water demand, part of Telford's Tempest range. Like the smaller direct model it carries a lifetime body guarantee when serviced annually.
Full Tempest 300 Indirect specifications →Common questions
What is the difference between the Samsung EHS Mono HT Quiet 12.0kW and the Telford Tempest 300 Indirect?
The Samsung EHS Mono HT Quiet 12.0kW is a r32 monobloc air source heat pump, 12.0 kW heat output; the Telford Tempest 300 Indirect is a indirect unvented hot water cylinder, 300 litres.
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