Adveco - Experts in commercial hot water systems.
DRE – Electric Water Heater

DRE – Electric Water Heater

AO Smith logo - BFC Cyclone

The DRE electric water heater is a three-phase appliance for commercial applications. Cascade control of the elements provides more efficient and faster heating-up times.

Features & Key Technologies


Fitted with 3 to 9 Incoloy elements, the DRE electric water heater provides a maximum rating of 54 kW. Each element is independently controlled via its own control thermostat (adjustable: 49 – 82°C) and a manually reset-able high-limit thermostat. The DRE features a safety float switch and AO Smith’s PermaGlas Ultra Coat second-generation glass coating technology helps to prevent corrosion.

  1. All elements and thermostats are fuse-protected

  2. Magnesium anode is replaceable

  3. Optional ancillaries include unvented kits, destratification pump kit and powered anodes

The DRE electric water heater stores and heats water for sanitary purposes. Cold water enters the tank through the water inlet. The heated water leaves the tank at the top through the hot water outlet. When hot water is used, the tank of the water heater is filled with the same amount of cold water. Each row of heating elements contains its own control thermostat for precise adjustment.

Ideal Uses & Applications

  1. Suitable for light commercial electric-only hot water systems

  2. Suitable for medium commercial electric-only hot water systems

Technical Specifications & Downloads

View table as a PDF (13kb)

DRE Load profile Energy efficiency class Energy efficiency
52-9 XL C 38%
52-18 XL C 38%
52-36 XL C 38%

DRE Load profile Energy efficiency class Energy efficiency
80-9 XL C 38%
80-18 XL C 38%
80-36 XL C 38%
80-54 XL C 38%

Why Choose Adveco


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.


Highest quality products and services

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


Full aftersales support

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

Product brochure download

Adveco Product Guide 2023 - Hot water, heating, renewables, pre-packaged plant rooms for bespoke commercial projects