Hi, has anyone here got an air source heating system installed? We have one that provides heating and hot water and it's expensive to service and get replacement parts. We have had it serviced once by the manufacturer costing £140. We have until 11 Dec to sign up for a package that includes one service and one call-out but we can't afford it as it's over £200. I'd be grateful for any advice from anyone in a similar situation .
Thank you