DIVERTER TEE W/ KICK SPACE HEATER

Brian_4

I installed a kickspace heater in a kitchen cabinet and it continues to not work properly. The boiler is a Peerless oil-fired boiler with tankless. The original system piping is a two pipe diverter tee system. When the boiler was replaced the previous installer put in extra tees for two radiators one of which I replaced. The tees are just regular CI. The kickspace heater is not heating up until it is purged to get the water flowing. What I want to do is to cut out the extra tees on the return and install one diverter tee and one regualar tee to try to eliminate any more problems. Will this affect the function of the rest of the system because the of the resistance in the return the pump is also on the return. Any advice is appreciated.

Brian_4

I installed a kickspace heater in a kitchen cabinet and it continues to not work properly. The boiler is a Peerless oil-fired boiler with tankless. The original system piping is a two pipe diverter tee system. When the boiler was replaced the previous installer put in extra tees for two radiators one of which I replaced. The tees are just regular CI. The kickspace heater is not heating up until it is purged to get the water flowing. What I want to do is to cut out the extra tees on the return and install one diverter tee and one regualar tee to try to eliminate any more problems. Will this affect the function of the rest of the system because the of the resistance in the return the pump is also on the return. Any advice is appreciated.
Thanks Brian.

Dave_8

Diverter tee systems

First of all, most diverter tees are used on single loop systems, not two pipe systems. At any rate in this part of the country you rarely see them otherwise. From your description of the problem it sounds as though you may be air locking to kick space heater, on all that we install, we use a manual air bleed on a stem for easy access. Also check the spaceing on the tees, on a single loop system we find that they must be at least two to three feet apart to work properly. The biggest single problem that we have seen with this type of system is that the pump will usually have to be upsized with any additional units added to the original amount as they need the water flow quite high to create the pressure differential to operate properly.

heatboy

Pressure drop

Not knowing what kick space heater you have, it may be due to the fact there is more pressure drop through the coil than the diverter T. You will have to keep several feet between your Ts or use two diverter Ts to create enough Delta P in the main to force the water through the coil. I would add a purge set up on the return side of the kick space so you can be sure all of the air is removed. Are you pumping away from the PONPC? This will aid in air removal in the system.

Warm Regards,

hb

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jeff_7

kit. blower

Is the rest of this system ci rad.

Jeff