How to heat a conservatory
Conservatories lose heat fast through glass. Here's how to size a heater and when a compact plug-in model is enough.
Written by the Pyrivo UK team · Updated October 2026
- Price
- From £59
- Power
- 400W / 800W
- Room size
- Up to 12 m²
- Guarantee
- 30 days
Quick answer
Conservatories lose heat fast through glass. Here's how to size a heater and when a compact plug-in model is enough.
Why conservatories are hard to heat
Glass walls and roofs lose heat far faster than brick. That means a conservatory needs more heat per square metre than a normal room, and cools quickly once the heater is off.
Sizing a heater
| Conservatory | Approx. need | Suggestion |
|---|---|---|
| Small lean-to, 6–8 m² | 600–800W | 1 × Pyrivo |
| Medium, 10–15 m² | 1–1.5kW | 2 × Pyrivo |
| Large, 15 m²+ | 2kW+ | Larger fixed heating |
Make the heat go further
- Close blinds after dark to reduce heat loss.
- Shut the door to the house so heat stays where you're sitting.
- Use the timer to warm the room just before you use it.
Read more in our portable heater guide.
Official UK store
Pyrivo Plug-In Heater
- Warms rooms up to 12 m²
- 400W / 800W, from ~10p an hour
- Remote, timer & overheat cut-off
From £59
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Frequently asked questions
Official Pyrivo UK store
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Stop heating the whole house to warm one room. Pyrivo plugs straight into the wall and puts the heat where you are.
- Heats the room in minutes
- Remote control & timer
- Adjustable digital thermostat
- Overheat auto shut-off
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