Underfloor heating query. Can I split a circuit?

[zaqzaq]

Hi all,

I am installing a wet underfloor heating in the upstairs of my home that I intend to use as an apartment for the next few years. I do not want to run the heating under a kitchen island but further down the line the plan is to remove the kitchen and island. Can I run a separate circuit under the kitchen island and somehow tie them to the existing circuit of the same room in the future or would this cause problems with the flow through the original circuit of the room should I tap into it later?

Any thoughts? Any suggestions?

Many thanks for your time.

 

[rpm]

Can be dangerous to add joints to the pipes later unless you are sure of what your doing.

 

[Ermintrude]

Run the two zones back to manifold and simply connect actuators to same channel when you want them both on.

 

[SimonG]

Have a seperate loop from the manifold under the island, just leave it isolated until required at a later date.

 

[zaqzaq]

RPM - Can the pips be rejoined easily by a qualified person? I won't be trying this for obvious reasons!

Ermintrude/SimonG - Can you elaborate on how to connect the two circuits or is it simply a matter of fitting a manifold with a spare port for use in the future? I presume the stats can can be wired to the two ports.

Thanks for the info guys, I will be laying the piping myself but the plumber will be pressure testing and connecting. Just working out how much pipe I need.

Also - The joists are 8 inches wide and the ceilings 10ft high. Should I have just one pipe running in between each joist or should I have the circuit running up and down in between each joist therefore having 2 heating elements in a 8 inch space or is one sufficient? I know its recommended that you space the pipes 200mm apart but are there any problems running there closer? Im thinking of better warm up times etc??

Thanks again of the info!

 

[rpm]

Not my area, was only quoting what I`d read on another post.

The others know better than me.

 

[brum]

As said run a circuit back to manifold connected but not live to fill up at a later date but make sure said pipework is pressure tested get a manifold to accom extra circuit for later usage..brum

 

[Ermintrude]

From your comment I think your a bit in experienced. My strong advise would be to make a scale drawing of the house and send a copy to your chosen supplier. Then they will specify layout and manifold set up. For free providing you use their gear. Tube lengths are specified..... If it dosnt work ( extremely unlikely) you have their design and reason to be compensated. If you guess and it's a mess...........

 

[oz-plumber]

For something that will never probably see the light of day in your lifetime, and very costly to rectify. It would be worth paying someone with experience to do the installation.

If you're not confident about doing the heating installation - you either wing it and hope for the best or you live with inadequate heating.

In the greater scheme of things - what percentage of the installation cost of the renovation would it be if you had someone come in and do the job professionally for you ?