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AD Wall-Mounted Water Heater

The Adveco AD wall-mounted range of high efficiency condensing gas-fired water heaters is designed to provide a compact, high capacity and reliable method for delivering instantaneous hot water to a building.

The Adveco AD wall-mounted range is also compatible with proposed 20% hydrogen blends in natural gas networks, offering a transitional route to a more decarbonised energy without requiring physical alteration to the appliance or building.

WRAS approved product
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Wall-Mounted Water Heater Design: Features & Key Technologies

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AD wall-mounted is a range of ‘A’ class energy efficient water heaters available in three rated heat outputs, 27 kW (AD16), 33 kW (AD22) and 61 kW (AD37). When combined with a water cylinder, AD wall-mounted helps meet peak withdrawals without increasing the water heater power. AD wall-mounted can also integrate with solar thermal systems to supply top-up heating when solar radiation during winter months is not enough to guarantee the required temperature for DHW demands.

The water heater features a single high-quality patented heat exchanger constructed from a continuous, non-welded run of AISI 316 Ti (Titanium) stabilised stainless steel, providing exceptional construction strength and corrosion resistance. With radial variable circulation, the heat exchanger recovers the latent heat of the flue gas, improving heat transfer for a net efficiency of up to 107% to produce domestic hot water (DHW).

With an efficient pre-mix burner and ultra-low NOX and CO emissions, the AD range is an eco-friendly way to serve a domestic hot water system. The unit additionally features a high 1:8 modulation ratio to ensure maximum efficiency even during periods of low demand.

By reducing energy consumption, AD can deliver operational savings of up to 30% compared to traditional water heaters for a wide range of commercial applications that demand large production of DHW, such as sports facilities, gyms, B&Bs, cafés, and other light commercial businesses.

Also included is an inbuilt controller with LCD display that ensures full temperature control and a maintenance self-check of primary components and functions.

Product brochure

What is a wall-mounted commercial water heater?

A wall-mounted water heater is a compact, space-saving instantaneous unit fixed to the wall rather than standing on the plant room floor, suited to smaller commercial premises where floor space is limited. AD wall-mounted covers 27 to 61 kW, aimed at light commercial applications rather than the high-volume demand AD floor-standing or Astute are built for.

 

The problem AD wall-mounted solves

Small commercial premises, cafés, B&Bs, smaller gyms, often don’t have the plant room space that a floor-standing water heater assumes. AD wall-mounted is built for exactly this scenario: a compact unit that delivers genuinely commercial-grade output and efficiency without needing a dedicated plant room footprint.

 
 
AO Smith

Technical Specifications & Downloads

Literature
Technical Specification Units AD16 AD22 AD37
Heat Input Range Maximum Minimum kW 28.3 3.6 35.5 6.7 64.2 13.3
Heat output range Maximum Minimum kW 27.0 3.0 33.5 6.1 60.9 12.8
Net efficiency Maximum output Minimum output % 105.7 103.0 104.7 102.4 105.3 107.1
Energy efficiency class A A A
Declared load profile XL XXL XXL
Continuous D.H.W. production (ΔT 50°C) l/min. 7.7 9.6 17.5
Gas flow rate Methane LPG m3/h kg/h 2.9 2.15 3.4 2.5 6.2 4.6
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Product brochure

Frequently Asked Questions

A compact instantaneous water heater fixed to the wall, for smaller commercial premises where floor space is limited.
Three models: 27 kW (AD16), 33 kW (AD22) and 61 kW (AD37).
Yes, combining it with a cylinder helps meet peak withdrawals without needing to increase the water heater’s power.
Yes, it can provide top-up heating when winter solar radiation isn’t sufficient on its own.
Sports facilities, gyms, B&Bs, cafés, and other light commercial businesses where floor space is at a premium.
Up to 107% net efficiency, with Adveco citing operational savings of up to 30% compared to traditional water heaters.
 
 

Why Choose Adveco

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50 Years

Adveco Ltd. is the independent hot water specialist for the commercial built environment and has historically traded as A.O. Smith Water Heaters in the UK.

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Highest quality products and services

We prioritise our clients’ needs to deliver bespoke, practical systems.

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Full aftersales support

Maintenance and service packages, commissioning, spares, warranty and technical support for your application.