Radiant floor heat system with usage wood boiler

1. Radiant floor heating system with usage outdoor wood boiler
For clarity, we take the pot of a certain brand-Vitolig 150 (Viessmann) - this is the most modern version
of the solid-gas generator boiler. Its feature is the combustion process, which gives up to 90%
efficiency. However, our advice will suit those who settled on a simple model of wood fired boilers, but
wants to get a cost-effective, fully automated Hydronic floor heating system. In other words, our main
task, even with wood boilers be able to regulate the flow of heat in different parts of the house, keep it
raised, comfortable temperature for us. At the same time no one wants to constantly be on duty in the
boiler room, then pouring the fire when the house is heated to the desired degree, then igniting it again
with decreasing temperature. And then, not all the rooms (and even floors) are used constantly owners,
why spend precious energy on them?
Enough to keep these areas a small temperature. In the presence of a gas boiler, these issues are more or
less just - Automatic boiler is set for a specific mode of operation and the fire in the burner it fades, it
flares up, keeping the Hydronic floor heating system at a certain temperature. In the case of wood
boiler can not be like this: the wood can not go out immediately, or as instantly ignite.
What to do?
The main feature of an automated heating boiler with wood is necessary to have in it the buffer
capacity of the hydraulic piping and wood boiler heat exchangers.
Buffer capacity and the system LADDOMAT 21.
The first appointment of the buffer capacity - store heat, save it and spend the dosage for heating. This
is due to the ability to save the buffer capacity of heat and can automate the entire Hydronic floor
heating system. Why is the system Laddomat 21? The process of gasification of woods - wood, occurs
at a certain temperature. Laddomat 21 maintains the desired temperature in the boiler and heat the
doses buffer capacity, without prejudice to the boiler.
How does it work?
After firing the boiler and boiler water temperatures reach 65 ° C, the controller turns the circulating
pump thermostat in Laddomat 21. There is a small circulation circuit, which ensures a stable
temperature necessary for the proper functioning of the boiler. If the temperature in the circuit exceeds
60 ° C, the mixer in Laddomat 21 opens and dispenses cold water from the reverse heating circuit in
the circuit of the boiler so that the temperature did not exceed 60 ° C. If, due to lack of fuel or for any
other reason the boiler temperature drops below 60 ° C, pump thermostat in Laddomat 21
vyklyuchaetsya.K time of completion of the boiler heating buffer tank has time to stock up on plenty of
heat and is ready at any moment to assume the function of heating the whole house.
You do not need all the warm water from the buffer tank (which is often more than a ton of hot water)
to drive the system in one hour. The heat will be consumed slowly, in doses, thanks to the three-way
valves on radiators. They are like a meticulous pharmacists, will be mixed into the overly hot water
supply has had time to cool a little return flow, bringing the system to the desired temperature. And
when you consider that for the underfloor heating loop temperature often exceeds supply +40 ° C

2. (depending on the design of floor heating), tank line at 3-5 degrees colder, and the output from the
buffer tank, we usually have a +80 ° C, the lion's share of the system would be the coolant return line
from the Hydronic floor heating system.
Thus, only can keep a comfortable temperature in the room for several hours. Buffer capacity can
sometimes serve as a boiler, especially if its volume is 1,000 or more liters of buffer capacity. The
corresponding temperature of the hot water system provides a thermostatic mixing valve.
Two boilers in the system.
Another design option for the design of the Hydronic floor heating system is the installation of two
boilers - solid and gas - either simultaneously with the accumulation of money, first install a boiler, and
after a while - the second one. In this case, the gas boiler is used in the off-season, when the
consumption of expensive fuel is better to minimize the coal and firewood to the passing attack of frost.
There is a real possibility to use simultaneously the two boilers. Automatic tracking flow of heat from
the boiler and wood to help him in case of severe frost turns the gas. As we have said, two of these
boilers can be installed either simultaneously or gradually, but in all the project documentation should
be taken into account in advance, and primarily due to the fact that each requires its own chimney pot,
which is easier to plan at the design stage at home.
However, in life everything happens according to plan, and clever ideas usually come not when they
have an urgent need. If your house is anything that was not planned in advance, but there is a desire to
put two of the boiler, you can choose from two options for installation of the flue channel. Or build an
attached chimney, or opt for a gas boiler with sealed combustion chamber - in this case does not need
flue, it is enough to drill a hole in the wall and put a PEX pipe on the facade.
Http://www.pexuniverse.com/