The Laars Heating Systems Approach to Primary/Secondary

In a primary/secondary system, the heating loop pump draws hot water from the main as though it were a boiler. In a way, the main actually becomes an extension of the boiler a long trough from which you can extract heat whenever and wherever you need it. Figure 6. 12" maximum We have to make sure the connection between

Understanding primary-secondary pumping

23/06/2014 · Pipe the manifold the same way you would if you were connecting it to a boiler. If one or more of your secondary zones are going to serve a radiant heat zone, use a two-, three-, or four-way valve to mix the water returning from your zone into the hot supply water from the primary circuit.

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The Ultimate Guide to System Boilers | September 2019

Heating and hot water guide - Energy Saving Trust

09/03/2021 · Secondary heating refers to the use of individual heaters, such as portable electric heaters or fixed gas fires, in addition to your central heating or electric storage heaters. Modern central heating systems are usually more efficient than individual electric heaters, but it can make sense to use an individual heater to heat one space for a limited time.

Guidance on how to comply with Part L - Intergas Heating

Because a system boiler is a sealed system, it also benefits from condensing technology. This means that energy is recycled from the exhaust gasses to preheat the cold water, making the system even more energy efficient and helping to reduce your homes CO2 footprint and reduce your environmental impact.

What is a system boiler - a homeowner's guide | Viessmann

18/06/2008 · A valve opens, gas enters a sealed combustion chamber in the boiler through lots of small jets, and an electric ignition system sets them alight. The gas jets play onto a heat exchanger connected to a pipe carrying cold water. The heat exchanger takes the heat energy from the gas jets

Secondary Hot Water Returns (FS) V4 - Kensa Heat Pumps

Trace Heating TapeThe ideal arrangement to reduce the temperature drop of the hot water is to use trace heating tape, which is self regulating and linked to a time clock. As a guide for a heat loss that gives a 5 degree temperature loss in a secondary loop of 28mm, a 1kW flow boiler will maintain the temperature in approx 78m of pipework