Hello,

I’m new this forum, joined as I would like some advice on creating my own trench heating system within an Edwardian house. The owner doesn’t want modern trench heating but instead copper pipes under a cast iron grill.

From a source I have found that 15mm copper with a temperature difference between room temp and flow temp of 55 degrees centigrade will give me 45w/m.

To heat up the room with copper alone would require 40m at this rate.

I told the customer I would need to add aluminium grills on the copper to extract more heat from the tube.

I will be creating a 28mm manifold with 6 15mm pipes coming off of the manifold. How much extra heat would be released from the heater if I added aluminium sheeting at 0.5mm spacings? Say 150mmx150mm aluminium sheets.

Thanks

Toby