How to Set Your Boiler Timer & Programmer

Why Your Heating Timer Matters

Running your heating 24/7 wastes significant energy. A well-programmed timer or programmer means your home is warm when you need it and saving energy when you don't — without the need to remember to turn it on or off.

Studies show that UK homeowners who use their heating programmer correctly save an average of £75–£150 per year compared to those who don't.

Types of Heating Controls

Basic Programmer (on/off timer)

Sets fixed on/off times — for example, heating on at 6:30am and off at 8:30am, then on again at 5pm and off at 10pm. These are common on older systems.

Programmable Room Thermostat

Combines a timer with a temperature sensor — you can set different target temperatures at different times of day.

Smart Thermostat

App-controlled, often with learning features and remote access. See our separate smart thermostat guide.

How to Set a Basic Programmer

While every programmer is slightly different, the process is broadly:

1. Set the current time and day — use the +/- buttons or dial

2. Enter programming mode — usually a dedicated button or switch

3. Set your ON time — the time you want heating to start

4. Set your OFF time — the time you want heating to stop

5. Repeat for additional periods — most programmers allow 2–3 on/off periods per day

6. Choose which days apply — weekdays, weekends, or individual days

Tips for Efficient Programming

Set the heating to come on **30 minutes before** you need the house warm (modern boilers heat homes quickly)

Turn off **30 minutes before** leaving or going to bed — heat stored in the house lasts a while

Use **separate weekend programmes** if your schedule differs

Consider **two heating periods** per day: morning and evening

Recommended Temperature Settings

**Living areas:** 18–21°C

**Bedrooms:** 16–18°C

**When out:** 12–15°C (enough to protect pipes without wasting energy)

If you'd like help setting your programmer or upgrading to a smart thermostat, Halo Heating is happy to assist. Call 01483 676108.