Heating
A conservatory is heated effectively when the fabric is insulated first and the heat source is sized to the remaining heat loss.
Central heating can be extended into a conservatory only when the room is separated from the house by external-quality doors or the building warrant permits the connection.
Scottish building standards restrict permanently open, unheated glazed rooms drawing from the main system. A warm roof and closing doors normally resolve this.
Electric underfloor heating suits most Glasgow conservatories, because it heats the coldest surface and needs no wall space.
| Option | Typical install cost | Best for |
|---|---|---|
| Electric underfloor | £1,200–£2,400 | New base with insulation below |
| Wet underfloor | £2,500–£4,500 | Full rebuild or orangery |
| Radiator on separate circuit | £450–£900 | Warm-roof rooms with wall space |
| Air source / air conditioning unit | £1,800–£3,200 | Heating plus summer cooling |
A well-insulated 15m² conservatory with a warm roof typically costs £1.50 to £3.00 a day to heat through a Scottish winter.
The same room with a polycarbonate roof can cost three to four times that and still feel cold.
