How do you heat a greenhouse with minimal energy usage? Now that we need to be energy efficient and sustainable – what options do we have to try and keep it frost free? Bubble wrap may be the future….
Read some practical advice from the RHS here:
![](http://www.roehamptonallotments.co.uk/wp-content/uploads/2023/12/candle-heater.png)
This candle heater will produce a slight raise in temperature
![](http://www.roehamptonallotments.co.uk/wp-content/uploads/2023/12/greenhouse-with-bubble-wrap.png)
Bubble Wrap Insulation – but light will be reduced..
![](http://www.roehamptonallotments.co.uk/wp-content/uploads/2023/12/hydronic-nderfloor.png)
Hydronic underfloor heating! Recommended to solar heat the circulating water if possible. You can also use old carpet to insulate the floor.