Head to head
Samsung EHS Mono HT Quiet 8.0kW vs Viessmann Vitodens 100-W 30kW combi
The Samsung EHS Mono HT Quiet 8.0kW is a r32 monobloc air source heat pump, 8.0 kw heat output. The Viessmann Vitodens 100-W 30kW combi is a gas combi boiler, 31.7 kw hot water output.
Last reviewed 13 September 2026
Specifications side by side
| Samsung EHS Mono HT Quiet 8.0kW | Viessmann Vitodens 100-W 30kW combi | |
|---|---|---|
| Dimensions | 1018 x 1270 x 530 mm (H x W x D) | 700 x 400 x 360 mm |
| Weight | 126 kg | 35-38 kg |
| Heat output | 8.0 kW | - |
| SCOP | 4.64 (35C flow), 3.38 (55C flow) | - |
| Refrigerant | R32, 2.7 kg charge | - |
| Sound pressure | 42 dB(A) standard, 35 dB(A) night mode | - |
| Max flow temperature | 70C | - |
| Hot water output | - | 31.7 kW |
| Central heating output | - | 25 kW |
| ErP class | - | A |
| Seasonal efficiency | - | 98% |
| Warranty | - | 5 years |
| Hot water flow rate | - | 15.6 litres per minute |
Sources: Samsung EHS Mono HT Quiet 8.0kW, Viessmann Vitodens 100-W 30kW combi. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the EHS Mono HT Quiet 8.0kW if...
An 8.0kW R32 monobloc heat pump sized for a small to medium house, reaching a 70C flow for radiator retrofits. A night mode sound setting brings it down to 35 dB(A), which suits a property with a neighbouring wall close to the outdoor unit.
Full EHS Mono HT Quiet 8.0kW specifications →Buy or hire the Vitodens 100-W 30kW combi if...
A gas combi boiler with 31.7 kW of hot water output, sized for a three-bed house with one or two bathrooms. It delivers about 15.6 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 5 years. Seasonal efficiency is 98%.
Full Vitodens 100-W 30kW combi specifications →Common questions
What is the difference between the Samsung EHS Mono HT Quiet 8.0kW and the Viessmann Vitodens 100-W 30kW combi?
The Samsung EHS Mono HT Quiet 8.0kW is a r32 monobloc air source heat pump, 8.0 kW heat output; the Viessmann Vitodens 100-W 30kW combi is a gas combi boiler, 31.7 kW hot water output.
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