Head to head
Intergas Xclusive 30 vs Vaillant ecoTEC plus 835 35kW combi
The Intergas Xclusive 30 runs 2.8 litres a minute more hot water.
Last reviewed 6 October 2026
Key differences
- Hot water flow rate: the Intergas Xclusive 30 runs 2.8 litres a minute more hot water.
Specifications side by side
| Intergas Xclusive 30 | Vaillant ecoTEC plus 835 35kW combi | |
|---|---|---|
| Central heating output | 4.00 - 23.10 kW | 32.8 kW |
| Hot water flow rate | 17.10 (dT 25 C) (l/min); 12.20 (dT 35 C) (l/min) | 14.3 litres per minute |
| Power | 30 kW | - |
| Height | 766 mm | - |
| Hot water output | - | 35 kW |
| ErP class | - | A |
| Seasonal efficiency | - | 94% |
| Dimensions | - | 720 x 440 x 372 mm |
| Warranty | - | 10 years with Vaillant Advance Boiler Protection Kit |
Sources: Intergas Xclusive 30, Vaillant ecoTEC plus 835 35kW combi. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Xclusive 30 if...
- you want one that runs 2.8 litres a minute more hot water
A wall-hung condensing combi boiler for installers fitting domestic heating and hot water without a cylinder. The Xclusive has a touchscreen panel, built-in expansion vessel and filling loop, and the mid output suits homes with higher hot water demand.
Full Xclusive 30 specifications →Buy or hire the ecoTEC plus 835 35kW combi if...
A gas combi boiler with 35 kW of hot water output, sized for a larger house with two bathrooms. It delivers about 14.3 litres per minute of hot water, which decides how well a shower runs while a tap is on. Warranty: 10 years with Vaillant Advance Boiler Protection Kit. Seasonal efficiency is 94%.
Full ecoTEC plus 835 35kW combi specifications →Common questions
What is the difference between the Intergas Xclusive 30 and the Vaillant ecoTEC plus 835 35kW combi?
The Intergas Xclusive 30 runs 2.8 litres a minute more hot water. The Intergas Xclusive 30 is a 30 kW combi boiler for homes, with a 10 year parts and labour warranty; the Vaillant ecoTEC plus 835 35kW combi is a gas combi boiler, 35 kW hot water output.
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