Two radiators on one loop from a manifold

Comer1

As can be seen from my sketch I have two radiators on one loop from the manifold. Can this ever work to get both rads to maximun temperature and if so how do I go about balancing them to achieve this?

Thanks in advance

shane0007

Comer1 wrote: »

As can be seen from my sketch I have two radiators on one loop from the manifold. Can this ever work to get both rads to maximun temperature and if so how do I go about balancing them to achieve this?

Thanks in advance

It will depend on the length of pipe run, diameter of pipe & the size of both rads.

Comer1

The run to rad 1 is about 15 meters and the run from rad 1 to rad 2 is about 6 meters. Rad 1 is a 3 foot single and I'm hoping I could put a 3 foot double in at rad 2. Pipework is all half inch.

shane0007

Comer1 wrote: »

The run to rad 1 is about 15 meters and the run from rad 1 to rad 2 is about 6 meters. Rad 1 is a 3 foot single and I'm hoping I could put a 3 foot double in at rad 2. Pipework is all half inch.

15 meters is a very long run. Can you get 3/4" to the tee for the first rad? It should be ok but you might have a good bit of balancing to do to push the heat to the long run.
What is the pump head, 5m or 6m? If 5m, I would think of changing to a 6m.

Comer1

shane0007 wrote: »

15 meters is a very long run. Can you get 3/4" to the tee for the first rad? It should be ok but you might have a good bit of balancing to do to push the heat to the long run.
What is the pump head, 5m or 6m? If 5m, I would think of changing to a 6m.

Thanks Shane
Do you mean to try and get 3/4" from manifold to rad 1 or to get 3/4" from rad 1 to rad 2.No great problem changing pipes from rad 1 to 2 but not possible to get at pipes feeding rad 1. Pump head is only 5m but easy to change that later if necessary.

Thanks again for your help.

shane0007

Comer1 wrote: »

Thanks Shane
Do you mean to try and get 3/4" from manifold to rad 1 or to get 3/4" from rad 1 to rad 2.No great problem changing pipes from rad 1 to 2 but not possible to get at pipes feeding rad 1. Pump head is only 5m but easy to change that later if necessary.

Thanks again for your help.

I meant 3/4 from the manifold to the first tee off for rad 1. The tee will then be a 3/4 x 1/2 x 1/2 318. That way it will be a 3/4 pipe feeding 2 rads instead of a 1/2.
Change pump head, balance & see, otherwise it's lifting some floors or bouncing across the floor with a kango!

Comer1

Thanks for the help. At least now I know have some options if I go ahead putting in the new rad.