Head to head
Heatrae Sadia Megaflo Eco 250 vs Samsung EHS Mono HT Quiet 12.0kW
The Heatrae Sadia Megaflo Eco 250 is a indirect unvented hot water cylinder, 250 litres. The Samsung EHS Mono HT Quiet 12.0kW is a r32 monobloc air source heat pump, 12.0 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Heatrae Sadia Megaflo Eco 250 | Samsung EHS Mono HT Quiet 12.0kW | |
|---|---|---|
| Dimensions | 1738 x 579 x 600 mm (H x W x D) | 1018 x 1270 x 530 mm (H x W x D) |
| Capacity | 250 litres | - |
| Heat-up time | 34 minutes (15 L/min recovery, 15C to 60C) | - |
| Max inlet pressure | 1.6 MPa (16 bar) | - |
| Immersion heater | 3kW incoloy immersion, back-up | - |
| Warranty | Lifetime guarantee in domestic installations | - |
| 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 |
| Weight | - | 137 kg |
| Max flow temperature | - | 70C |
Sources: Heatrae Sadia Megaflo Eco 250, Samsung EHS Mono HT Quiet 12.0kW. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Megaflo Eco 250 if...
A 250 litre indirect unvented cylinder from Heatrae Sadia's Megaflo Eco range, one of the most fitted cylinder brands in the UK. It reheats in about 34 minutes at a 15 litre/min flow rate and carries a lifetime guarantee in a domestic installation.
Full Megaflo Eco 250 specifications →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 →Common questions
What is the difference between the Heatrae Sadia Megaflo Eco 250 and the Samsung EHS Mono HT Quiet 12.0kW?
The Heatrae Sadia Megaflo Eco 250 is a indirect unvented hot water cylinder, 250 litres; the Samsung EHS Mono HT Quiet 12.0kW is a r32 monobloc air source heat pump, 12.0 kW heat output.
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