ADATB 327 / ADHTB 327 / LWD 3kw 11" Immersion Heater for Thermal Stores

Product Code: SH311A-AA1HA2

Product Information


Key features

– For use in water, in domestic applications
– Single thermostat pocket

Technical data

– Material: Incoloy 800
– Loading: 3kW
– Element diameter: 8mm
– Head size (BSP): 2 ¼”
– Temperature range: 80°C Max Operating Trip, 90°C Safety Trip
– Voltage: 240V 1-Phase
– Supplied with thermostat


This is a 3kw, 11inch Incoloy Immersion Heater complete with separate operating & safety cut-out rod / stem thermostats. Typically used within smaller thermal store cylinders. This product will often carry the ThermTec brand which is owned and manufactured exclusively by Heatrod Elements.

The ADATB327 / ADHTB327 LWD is specifically designed with low watts density aimed at use in heavier duty applications such as thermal stores and in hard water areas susceptible to limescale. The element is bonded to the brass flange with an environmentally friendly, WRAS approved, epoxy bond, making for more robust hydraulic and corrosion proof performance.

If particularly aggressive water conditions are present or the duty/usage is higher than normal then we would recommend a titanium element version which can be priced and manufactured on request.

A high temperature range Diamond H WTS thermostat is used with this immersion heater – see our “Thermostats & Controls” section for more details and to purchase these products.

Installation Instructions for ADATB327 & ADHTB327 LWD can be found here.

How to Measure the BSP Thread size of your Immersion Heater:

Once you have measured the thread, use the table below to select the correct BSP size:

£57.01 inc. VAT

In stock

SKU: SH311A-AA1HA2 Categories: ,

Additional information

Loading (kW)

Voltage (V)

Secondary Protection

Length (mm/Inch)

Element Diameter (mm)

Stat Inches

Sheath Material

Head Size (BSP)


Thermostat Type


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