My underfloor heating boilers are on, but no heat? Comments Off on My underfloor heating boilers are on, but no heat? 18 Jan 2016 Vote Up 0 Vote Down Answered Public Public Private Underfloor Heating Anonymous asked January 18, 2016 Hi, Underfloor heating boilers are on but no heat 1 answer Vote Up 0 Vote Down Public ⋅ January 18, 2016 When was your last service? Sounds like its time for another one, Give us a call so we can organise it to happen. #1 Please login or Register to Submit Answer