CULKIN PLUMBING AND HEATING LTD    Director JEFF CULKIN ACIPHE RP RHP    29B CHANDOS ROAD    WILLESDEN GREEN    LONDON    NW2 4LS   

Gas Safe Reg no 305929    Company No. 07980305    VAT No. GB172932986    D-U-N-S Number: 21-827-8135

Primary Coverage;    NW2 Willesden Green Cricklewood, Childs Hill    NW3 Hampstead, Belsize    NW5 Kentish Town, Camden    NW6 West Hampstead, Kilburn,

Queens Park    NW8 St Johns Wood    NW10 Kensal Rise, Harlesden, Willesden    NW11 Golders Green Hampstead Garden Suburb    W9 Maida Vale    W10 North Kensington, Queens Park    W11

* Commercial Gas Heating and Boilers * Legionella Inspections and Water Treatment. * PAT Testing. * System design and build; including plumbing, heating and gas sizing.* Boiler Repairs and Servicing.* Boiler Installation, G3 Cylinder Installation

* Heating System Servicing.* Mechanical Surveys.* Leak detection, tracing.

Only the Baxi gives you the possibility of retaining all the existing controls and no re wire as it has no pump over run. All the modern boilers except the Baxi require pump over run as they need the latent heat taken away. The design of the Baxi heat exchanger allows it to take the latent heat. The old boilers had bigger channels so this was not a problem but they were mush more inefficient. 

 

Pump over run means that after the boiler burner flames go out when the max flow temp is reached the pump remains on for a 2 - 5 minute overrun continuing to taking the heat out of the boilers heat exchanger. Boilers without the need for pump overrun require a 3 wire cable (live, earth and neutral), boilers with a pump over run require a 5 wire cable (live, permanent live, earth, neutral, switched live).

 

Anything boiler cheaper than the Baxi's is going to incur rewire costs and require a new programmer so it may not work out cheaper in the end. I look at the Ideal they have some decent cheaper boilers and see.

 

We do not fit the really cheap boilers it's not worth the grief, too much of a gamble, too many problems  too early poor warranty service.