Vaillant ecoTEC Pro 24 Gas Combi Boiler | 0010021836 | 24kW

Description

The Vaillant ecoTEC Pro 24 (MPN 0010021836) is a 24kW gas combi boiler combining the reliability and performance Vaillant is known for with a simple, no-frills design approach. It's built for smaller homes with modest heating and hot water requirements — typically one to three bedroom properties with a single bathroom — where a compact, cost-effective combi is the priority.

A stainless steel heat exchanger gives the Pro 24 long-term durability, while Vaillant's aquaCOMFORT warm start feature speeds up hot water delivery at the tap. Quiet Mark accredited and Which? Best Buy rated, it's hand-built at Vaillant's Derbyshire manufacturing plant and compatible with aroTHERM heat pump hybrid systems for a future entry point into renewable heating.

89.3%

SAP 2009 Efficiency

9.6 L/min

DHW Flow Rate

7 Yrs

Warranty (Advance)

Quiet Mark

Which? Best Buy

85°C

Max Flow Temperature

720×440×338

Dimensions (mm)

Gas Safe installation required. This is a mains gas appliance and must be installed, commissioned and serviced by a Gas Safe registered engineer, in line with Building Regulations Part L and current Gas Safety (Installation and Use) Regulations.

Stainless Steel Heat Exchanger

A patented stainless steel heat exchanger gives superior heat transfer and long-term durability compared with lower-grade materials.

aquaCOMFORT Warm Start

Vaillant's aquaCOMFORT feature increases the speed of hot water delivery at the tap, reducing the wait for hot water compared with a standard cold start.

Quiet Mark & Which? Best Buy

Quiet Mark accredited and Which? Best Buy rated, combining low-noise operation with independently recognised performance and reliability.

Two-Stage Frost Protection

Built-in two-stage frost protection keeps the boiler operating reliably through cold weather without additional components.

Push-Fit Flue & Removable Panels

A push-fit flue system and removable side panels speed up both installation and future servicing access for engineers.

Hybrid-Ready

Fully compatible with Vaillant's aroTHERM air-to-water heat pump in a hybrid configuration, offering a straightforward entry point into renewable heating.

Heating Performance

Nominal Heat Output (50/30°C, condensing)

5.9–24.8 kW

Nominal Heat Output (80/60°C, non-condensing)

5.2–23 kW

Maximum Flow Temperature

85°C

Flow Temperature Range

30–80°C (factory setting 75°C)

Domestic Hot Water

DHW Flow Rate (Δ35K)

9.6 L/min

Approximate Condensate Volume (50/30°C)

1.9 litres/hr

Physical & Connections

Dimensions (H × W × D)

720 × 440 × 338 mm

Heat Exchanger Material

Stainless steel

Efficiency & Compliance

ErP Rating (Heating & Hot Water)

A

SAP 2009 Efficiency

Up to 89.3%

Manufacturer Part Number (MPN)

0010021836

GTIN / EAN

4024074808276

Warranty

2 years standard; 7 years with Vaillant Advance registration

What size property does the ecoTEC Pro 24 suit?

With a 9.6 L/min DHW flow rate, the Pro 24 is well suited to 1–3 bedroom properties with a single bathroom. Homes with higher hot water demand may be better served by the 28kW or 30kW ecoTEC pro models.

How do I get the full 7-year warranty?

This boiler ships with a 2-year standard guarantee. Registering it through Vaillant Advance extends this to 7 years free of charge — confirm current eligibility and steps with Vaillant before completing the installation.

What is aquaCOMFORT?

Vaillant's aquaCOMFORT is a warm-start feature that reduces the delay before hot water reaches the tap, giving a faster, more consistent showering and bathing experience compared with boilers without it.

Is this boiler compatible with heat pump hybrid systems?

Yes. The ecoTEC pro 24 is compatible with Vaillant's aroTHERM air-to-water heat pump in a hybrid setup, allowing a phased transition toward renewable heating alongside the existing gas boiler.

Who can install this boiler?

Installation, commissioning and servicing must be carried out by a Gas Safe registered engineer, in line with UK Gas Safety (Installation and Use) Regulations and Building Regulations Part L.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

Triple Glazed

External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

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Required Heating

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Watts

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