Products and systems we commonly encounter

Electric boiler / thermal store systems

Heating and hot-water integrated units

What we can help with

Fault finding and electrical diagnosis

Replacement planning and system sizing

Controls, supply and circuit checks

Installation and commissioning where appropriate

Related services

Electric boiler repair Electric boiler installation Economy 7 Cylinders

Berkshire & London

We cover Berkshire from Reading through Maidenhead, Slough, Windsor, Bracknell and nearby towns, and selected London areas by planned appointment.

Thermaflow output and storage combinations

Thermaflow's current electric combination-boiler range is built around 6kW, 9kW and 12kW heating outputs with integrated stored-water capacities across several sizes. That makes the job different from a small wall-hung flow boiler: available floor space, stored-water demand and the weight of a full appliance all matter as well as the electrical load.

Common reasons for a Thermaflow visit

Heating available but hot-water performance has changed

Boiler not heating radiators to the expected temperature

Controls, thermostat or pump behaviour appears abnormal

Replacement planning for a large packaged electric system

We identify the exact TH model and cylinder volume before quoting because the physical size and system duty vary substantially across the range.

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Technically reviewed by Berkshire Electric Heating

Reviewed 9 September 2026 · NICEIC-registered electrical work · G3 unvented hot-water qualified · Dimplex Pro / Quantum installer training.

Thermaflow electric heating systems