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Heatrae Sadia Multipoint 100 vs Viessmann Vitodens 050-W 35kW combi

The Viessmann Vitodens 050-W 35kW combi comes with 1 year more warranty.

Last reviewed 13 September 2026

Key differences

Specifications side by side

Heatrae Sadia Multipoint 100Viessmann Vitodens 050-W 35kW combi
Dimensions1234 x 1207 x 454 (V) / 454 x 454 x 454 (H) mm700 x 400 x 300 mm
Warranty2 years full warranty, 10 years on the inner cylinder3 years
Capacity100 litres-
Power3 kW, 230V-
Heat-up timeapprox. 112 minutes-
Recovery timeapprox. 79 minutes-
Max operating pressure10 bar-
Hot water output-34.2 kW
Central heating output-32 kW
ErP class-A
Seasonal efficiency-93%
Hot water flow rate-14.1 litres per minute

Sources: Heatrae Sadia Multipoint 100, Viessmann Vitodens 050-W 35kW combi. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Multipoint 100 if...

A 100 litre electric unvented water heater from Heatrae Sadia's Multipoint range, for a property with no boiler-fed hot water such as an outbuilding or small flat. It runs from a 3kW element and carries a 10 year warranty on the inner cylinder.

Full Multipoint 100 specifications →

Buy or hire the Vitodens 050-W 35kW combi if...

  • you want one that comes with 1 year more warranty

A gas combi boiler with 34.2 kW of hot water output, sized for a larger house with two bathrooms. It delivers about 14.1 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 3 years. Seasonal efficiency is 93%.

Full Vitodens 050-W 35kW combi specifications →

Common questions

What is the difference between the Heatrae Sadia Multipoint 100 and the Viessmann Vitodens 050-W 35kW combi?

The Viessmann Vitodens 050-W 35kW combi comes with 1 year more warranty. The Heatrae Sadia Multipoint 100 is a electric unvented water heater, 100 litres; the Viessmann Vitodens 050-W 35kW combi is a gas combi boiler, 34.2 kW hot water output.

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