Changing radiator for 2 verticals

[Njh11]

Hi all,
I have a 6 ft x 2 ft double radiator in my 18ft x 13 ft lounge and want to change to 2 vertical radiators to gain space. My heating system is a Worcester Bosch greenstar 30i and I have 6 radiators in the house. My question is should I replace the one by working out the btu output and dividing by two or go by the room size btu divided by two?

 

[ShaunCorbs]

room heat loss and divide by 1.7 ish

 

[centralheatking]

Hi all,
I have a 6 ft x 2 ft double radiator in my 18ft x 13 ft lounge and want to change to 2 vertical radiators to gain space. My heating system is a Worcester Bosch greenstar 30i and I have 6 radiators in the house. My question is should I replace the one by working out the btu output and dividing by two or go by the room size btu divided by two?

The modern vertical radiators are usually poor heat emitters. Obviously do your figures but do not be surprised if you end up with two expensive monsters Centralheatkinf