‘I am very impressed with the system effectiveness. The whole house achieves an even temperature and there is the added benefits of no radiators.’ Mr. M D Yates. Pantymwyn, Wales

PEXATHERM UFH Systems
The Primary Heating Circuit

The Primary Circuit is the pipework, valves and pumps required between the boiler and the UFH manifold. The primary circuit is to has water at boiler temperature to the radiators and the cylinder heating coil.

Example one of a heating circuits
This example shows two underfloor heating systems (say one on ground floor and another on first floor) are connected to one boiler. The manifolds and mixers connect to the boiler via the primary pipe circuit. In this case each circuit has its motorised valve, UFH mixer and UFH pump.
We show Pexapipe primary manifold connecting the boiler to the two UFH manifolds and the hot water cylinder coil.

Example two of a heating circuit
The Pexapipe primary circuit allows different types of heating sytems to connect to one boiler. UFH manifold with its mixer is connected to the boiler via the primary circuit, while a radiator manifold connects the first floor (or existing building) radiators to the same primary circuit via the primary manifold.
In this case a motorised valve, UFH mixer and UFH pump are included for ground floor UFH manifold, while a motorised valve and a Pexapipe radiator manifold are used for the first floor radiator circuit.

Further explanation: Small UFH circuits may not need to use 2-port valves between boiler and manifold if their prog'stat is not controlling boiler. In this case the boiler heating water is available on demand. The pump at the manifold pulls the water through the mixer while the pump at the boiler supplies the cylinder and the radiator circuits.

Wherever you situate the manifold the Pexapipe primary ensures flexible and easy connection to the boiler.
Our know how, long experience and extensive investment help you solve such problems successfully.

The manifold is located in a central position, say under the stairs, and is supplied with a pipe in pipe through the floor insulation.
Pexatherm Pipe in Rail for Solid Floor with Pexapipe primary in floor insulation.
Pexapipe primary pipes in conduit ready to connrct to Pexatherm underfloor manifold 
The "Old Chestnut" of how to deal with pipe interference from room to manifold via other areas has long been solved by IPPEC. Others who have less experience than IPPEC are now facing the problems. As usual such problems need 'know how' and investment - the hall mark of IPPEC.
We have been investing in an ever increasing range of products in response to demand by customers for solutions. IPPEC has solved this problem aws tackled right from the begining of our envolvement with underfloor heating.
1- We supply the primary Pex pipe in conduit since 1986. This pipe frees the position of the manifold in relation to boiler. The primary pipe is buried in insulation and allows the UFH manifold to be placed centrally and therefore pipes eminating from it do not pass through other rooms.
2- We supply conduit to sheath UFH pipes near manifold to reduce heat output from the floor near the manifold. Here the pipes are close together and the heat output can cause damage to the floor or be excessive as in internal corridors. The conduit which is larger than the pipe creates an air gap that acts as an insulator and reduces the the floor heat output. The conduit absorbs any excessive movement from the pipe reducing further any danger of damage to the floor or its finish.