Horstmann 12157 Electronic Thermostat

Product code:



Horstmann 12157 Electronic Thermostat

Product code:
Horstmann 12157 Electronic Thermostat Horstmann 12157 Electronic Thermostat



Product rating
4.8 out of 5 stars (4) Write a review

  • CH control System
  • For home central heating systems

Read more aboutHorstmann 12157 Electronic Thermostat

Horstmann logo

Product notices

  • Home Delivery

    Unavailable for Home delivery. Please check your local store stock.

  • Click & Collect Unavailable for Click & Collect

[This is a block of tabs..]

Product Details

Features and benefits

  • SPDT
  • Digital display

Technical specifications

Technical specification of Horstmann 12157 Electronic Thermostat
Brand Horstmann
Model 12157
Primary power supply Battery powered
Battery type AA
Number of batteries 3
Battery backup Battery backup
Programmes 7 day
Number of preset programmes 6
Override facility Override facility
Minimum temperature range 6°C
Maximum temperature range 30°C
Wiring 2 wire
Standard BS EN 60730-2-9: 1995

Alternative product

Honeywell Digital Thermostat

Product code:
Product rating
4.4 out of 5 stars
Current price

Help & Advice

BTU Radiator Calculator

Your requirements

1. What type of room is it?
2. What are your room dimensions in metres?
3. What type of heating do you have?
4. What type of windows do you have?

Your results

BTU per hour:

  • 00 per radiator

How to guides

How to connect pipes and fittings

How to connect pipes and fittings

Pipes and fittings vary by home and by length, shapes and connectors. Thankfully, this is no longer a problem and there are lots of different solutions to make your pipework secure and reduce the risk of leaks.

Buying guides

Plumbing tools buying guide

Plumbing tools buying guide

Plumbing comes with a whole catalogue of specialist tools. If you're going to do the job, make sure you get the right ones.

Reviews 4.8 out of 5 stars

More Information

  • One Planet Home Brand Logo

    This is a One Planet Home approved product

    Over 20,500 B&Q products are One Planet Home approved to help you make greener choices.

  • One Planet Home - Save Energy

    Save Energy

    Helps you save energy at home. Energy prices are soaring so an energy efficient home is more important than ever.

Product reassurances

Choose a convenient delivery date on 1000's of products

45 day returns policy

Customer support team - 0333 014 3357

Free delivery on orders over £50

Home delivery orders placed on diy.com.
Excludes Next Day Bulk delivery goods