Doctors are prescribing heating to patients with conditions that get worse in the cold as part of a health trial.
The Warm Home Prescription pilot paid to heat the homes of 28 low-income patients to avoid the cost of hospital care if they became more ill.
Michelle Davis, who has arthritis and serious pulmonary illness, had her energy bills paid for and said the difference was "mind-blowing".
"When the weather turns cold, I tend to seize up," she told the BBC. "It's very painful, my joints ache and my bones are like hot pokers."
In 2020 Ms Davis spent most of the winter in b