Originally had one Fischer heater installed in our lounge to replace the two night storage heaters. I must admit we were a bit dubious that one Fischer heater would be sufficient, but in does the job very well and is certainly more controllable. We did have some trouble with the connection. The fitter used crip connectors for the joining of two cables, which became disconnected. Fortunately I was able to make this safe by using a junction box. I contacted Fischer heating, who were very concerned that it was safe. Once assured it was, they then arranged for another fitter to call very quickly to rectify the situation. On the strength of how the first heater performed we decided to replace all our storage heaters and our panel heaters. We are very pleased with the result. The controlability, compared to the old storage heaters, is fantastic. Although we have not had a bill since converting all our heaters to Fischer we would recommend these heaters. With thanks to all the staff at Fischer for their excellent service: sales, installation and aftercare.