ST Leonard’s Church in Woodcote is appealing for donations towards upkeep.
The 19th century flint building costs more than £2,000 a month to maintain and needs additional funding to replace the heating system.
The Friends of St Leonard’s, a group of volunteers who looks after the church, says the church’s wall- mounted electric heaters cost too much to run and it is investigating alternatives.
In the past year, the group has paid to refurbish the garden of remembrance and replace the lightning conductor on the church tower.
It is urging supporters to give at least £5. Anyone who can help should call Marcia Spiers on 07776 298754, Sara Todd on (01491) 871880 or Barbara Penniall on (01491) 681449.