ThermoSphere 12V Double Square Electric Heated Towel Bar 632mm – 37W, 6 Finishes

Description

The ThermoSphere Double Square 632mm is the larger variant of the double square bar, offering a greater towel capacity and more visual presence on the wall. At just 37W / 12V SELV, it runs safely in any bathroom zone at minimal running cost. The patented self-regulating element limits maximum temperature automatically, making it 50% more efficient than traditional electric towel bars. Made from 304 grade stainless steel, designed and finished in the UK. Available in 6 standard finishes. 37W output. 5-year warranty. 12V transformer required, sold separately.

37W

Max Output

12V SELV

Safety

632mm

Bar Length

304 SS

Grade

6

Finishes

5 yr

Warranty

⚠ Transformer Required: A separate 12V transformer is required and sold separately. Total the wattage of all bars on the circuit to size the transformer correctly. Connection to mains must be made by a qualified electrician.

Sizes & Finishes

Code	Description	Finish	Output
HTB-DS-632-DPS	Double Square 632mm	Diamond Polished	37W
HTB-DS-632-BSS	Double Square 632mm	Brushed Stainless	37W
HTB-DS-632-PLB	Double Square 632mm	Diamond Polished Brass	37W
HTB-DS-632-BRB	Double Square 632mm	Brushed Brass	37W
HTB-DS-632-MBK	Double Square 632mm	Matt Black	37W
HTB-DS-632-MWT	Double Square 632mm	Matt White	37W

Key Features

12V SELV — Safe in Any Bathroom Zone

At 12V SELV (Safety Extra Low Voltage) this bar is completely safe in all bathroom zones including Zone 1 (above or inside a bath/shower tray) where 230V appliances are not permitted. No specialist enclosure required.

12V SELVAll bathroom zones

Patented Self-Regulating Element — 50% More Efficient

The dual self-regulating heating element automatically limits maximum operating temperature. When a towel is placed on the bar the element heats to optimum; when temperature is reached output reduces rather than cycling on/off at full power. 50% more energy-efficient than conventional electric towel bars.

Patented elementSelf-regulating50% more efficient

304 Grade Stainless Steel — Designed and Made in the UK

Manufactured from 304 grade stainless steel — the premium grade used in demanding wet environments. Designed, finished and made in Great Britain. Available in 6 standard finishes: Diamond Polished, Brushed Stainless, Diamond Polished Brass, Brushed Brass, Matt Black, Matt White.

304 SSMade in UK6 finishes

Double-End Patented Mounting — Up to 7 Bars, Integrated Cable Management

The patented mounting system supports up to 7 bars in a single run with perfect alignment and concealed cable routing. Each double-end bar holds up to 30kg. The 2m connection cable exits from the wall end of the bar, fully concealed.

Patented mountUp to 7 barsCable managed

T-MO Relay Mode and Dual Control Thermostat Compatible

Pair with the T-MO thermostat in relay mode for scheduled on/off control without temperature sensing. The ThermoSphere Dual Control Thermostat can independently schedule both a towel bar and underfloor heating from one thermostat.

T-MO relay modeDual Control compatible

Technical Specifications

Technical Data
Voltage	12V SELV
Material	304 Grade Stainless Steel
Dimensions (W×H×D)	632 × 40 × 100mm
Output	37W
Cable Length	2m
Wiring Connection	Concealed
Fixing	Patented mounting system (concealed)
Finishes Available
Standard Finishes	Diamond Polished, Brushed Stainless, Diamond Polished Brass, Brushed Brass, Matt Black, Matt White
Box Contents
Contents	1× towel bar, 4× fixing screws, 1× fixing spigot, 2× grub screws, 1× allen key, 1× 2m cold tail connection cable, installation instructions
Transformer	Not included — sold separately (required)
Certifications
Patent	GB 2559848B / AU2017101753A4
Warranty	5 years
Country of Origin	United Kingdom

ℹ Installation: All electrical connections must be made by a qualified electrician in accordance with BS 7671. Register your product with ThermoSphere online to activate your lifetime warranty.

Frequently Asked Questions

Do I need a transformer?

Yes — a 12V transformer is required and sold separately. Add up the wattage of all bars on the circuit to size the transformer. This 632mm bar is 37W.

Can I control this bar with a thermostat?

Yes. Use the T-MO thermostat in relay mode for scheduled on/off control. The Dual Control Thermostat can independently schedule a towel bar and underfloor heating from a single unit.

How many bars on one mounting system?

Up to 7 bars on the patented system in a single run, with perfect alignment and no visible cables between bars.

Is it safe in all bathroom zones?

Yes — 12V SELV is safe in all bathroom zones including Zone 1 (directly above or inside a bath/shower tray) where 230V appliances are not permitted.

What is the maximum load?

Each double-mounted square bar holds up to 30kg. The patented mounting ensures bars remain perfectly level long-term.

Related Products

ThermoSphere Double Square 450mm

Shorter double square — 25W

ThermoSphere Single Square 500mm

Single-end mounted version

ThermoSphere T-MO Thermostat

Control via relay mode

BTU Calculator

BTU & WATT Calculator

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)

Calculate

Required Heating

0

Watts

0

BTUs