Intergas Rapid Combi 25 Gas Boiler ErP

£571.18 excl. VAT


  • Save money on energy bills as condenses it 100% of the time in both heating and hot water modes
  • ErP compliant as high efficiency pump is fitted as standard
  • Built-in digital time clock
  • Flow rates up to 11.2 liters per minute at 35C rise
  • Central flue with flue lengths up to 13 m
  • 3 year parts and labour warranty
  • Additional 4 year warranty for £ 145 + VAT
  • 7 year warranty on heat exchanger
  • Just 12 components, including 4 moving parts means less maintenance, lower service costs and greater reliability
  • 4 in 1 boiler, combi easily converted into system, open vent or multipoint by simply changing parameter settings in the software
  • Built-in expansion vessel
  • Fixing bracket, no jig
  • Mirrored sight glass fitted
  • LPG options available

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Intergas Rapid Combi 25 Gas Boiler ErP

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Signature output 25
Safety class IP IP44
NoX class 5
NoX level mg/kWh < 60
Domestic hot water

Input (lower value) kW 7.1 – 28.0
DHW threshold l/min 2
DHW flow rate at ΔT 25°C l/min 15
DHW flow rate at ΔT 35°C l/min 11.2
DHW temperature (factory setting) °C 55
Max. DHW water pressure bar 8
Min. DHW water pressure inlet bar 0.2
Central Heating

Nom. input rating (lower value) kW 7.1 – 23.7
Rated Power kW 7.7 – 23.1
Max. CH water pressure bar 2,5
Max CH water temperature °C 90
Boiler dimensions and weight

Height mm 810
Width mm 450
Depth mm 270
Weight kg 42

Max. horizontal mtr 13
Max. vertical mtr 13
Standard flue diameter mm 60/100

Mains cold water inlet mm 15
Domestic hot water outlet mm 15
Gas connection mm 15
Pressure relief valve mm 15
Heating flow and return connections mm 22
Condensate drain (flexible) mm 25
Solar compatible yes
Seasonal space heating energy efficiency class A
Heat rated output power (P rated) kW 25
Seasonal space heating energy efficiency % 93
Annual energy consumption GJ 75
Sound power level dB 50
Maximum load profile XL
Water heating energy efficiency class A
Water heating energy efficiency % 87
Annual electricity consumption (AEC) kWh 20
Annual fuel consumption (AFC) kWh 4976

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The Dutch Intergas has been at the forefront of domestic boiler manufacture in the Netherlands for over 40 years; its roots, however, go back to 1939, when it was involved in domestic products of quite a different kind. Then the company was known as Machinefabriek van de Wetering and it specialised in manufacturing wooden washtubs and laundry wringers.

With the discovery of natural gas in the Northern part of the Netherlands, the company moved to Coevorden in 1961 and, in the mid-sixties, produced its first heating products. In 1989 Intergas launched its first condensing boiler in the Netherlands. This was the first country to take the energy efficiency credentials of boilers seriously and this propelled Intergas into pole position, becoming the leading brand in condensing boiler technology.

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Additional information

Weight 42 kg
Dimensions 45 × 27 × 81 cm


Rated Power (W/kW)

25 kW

Product Category

Gas Boilers

A 1

Heating and Cooling

Geographical Area




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