In RT 2012, the losses are on average 20 W/m² by the basic conditions.That is to say by -7 to -15°C outside temperature.For a 100 m² dwelling, this results in 2 kW of losses.Add the classic overpower of 20% and you get only 2.4 kW of heating power to install for 100 m².In an apartment building, the apartments on the intermediate floors go down to 1.5 kW per 100 m².In short, you need generators capable of operating for a good part of the heating season by delivering only 500 W of power, but also capable of producing domestic hot water in large quantities.And who also know how much they consume for heating and for DHW, since RT 2012 requires the display of consumption by use (heating, DHW, ventilation, lighting and other uses).Today, Frisquet clearly holds the record for power modulation.Its Hydroconfort Solaire condensing boiler modulates its power from 0 to 100%, i.e. from 0 to 20%.The manufacturer succeeds in this all of strength thanks to the very particular architecture of its generator.The burner modulates the power from 5 to 20 kW.Nominal efficiency is 109% on PCI.Taking advantage of the inertia of the heating body, a 3-way valve modulates the power from 0 to 5 kW.This generator is also connected to a thermal solar collector and associated with a narrow and high DHW production tank (1.70 m) of 220 l.The shape of the balloon is intended to guarantee the natural stratification of the temperature, so as to favor the contribution of the solar collector.The tank carries three temperature sensors, at the top, in the middle and at the bottom, and two exchangers: solar exchanger at the bottom, exchanger from the boiler at the top.Analyzing the information from the three temperature sensors, the regulation decides whether to use the boiler or not.The regulation fitted as standard on all Frisquet boilers includes a “cascade boiler room” function.To create a boiler room, the installer associates several individual boilers on the floor or on the wall, indicates to the regulation of one of them that it takes on the role of the master.It communicates by HF radio with the controls of the other Frisquet boilers, has its authority recognized and manages the cascade of generators.For an installer, this means that by installing only individual boilers that he masters perfectly, he is able to build boiler rooms very easily.Hybrid heat pump from 1 to 16 kWAtlantic has also tackled the problem of new construction and offers the Hysae hybrid heat pump.It consists of a split air/water heat pump, with a nominal power of 2.8 kW, but modulating from 1 kW with a COP 4.25 (A7 /W35), associated with a gas boiler condensing wall unit, whose efficiency reaches 108.5% on PCI at 30% load.The boiler is able to modulate its power from 4 to 16 kW in heating and offers a fixed power of 28 kW in DHW production mode.As a result, the Hysae hybrid generator knows how to modulate its heating power from 1 to 16 kW, while offering a specific DHW flow of 20 liters per minute.Daikin is also presenting a hybrid heat pump at Interclima: the Altherma hybrid.This is a 4.8 or 8 kW split air/water heat pump, using R410A, with a COP of 5.04 (A7 /W35).Which is very high.The heat pump is associated with a wall-mounted condensing gas condensing boiler with a suction cup, with an efficiency of 107% on PCS.The main novelty comes from the Daikin Flow Control regulation which acts on the circulation speed of the heating circuit to maximize the temperature difference between flow and return and promote the operation of the heat pump.In heating mode, the heat pump operates alone up to 5°C.Between 0 and 5°C, heat pump and boiler both operate.Below 0°C the boiler works alone.The boiler has 2 exchangers (DHW and heating) embedded in a single cast aluminum heating body.The cold water enters directly into the DHW exchanger.This guarantees that the boiler also condenses in DHW production mode.Source: batirama.com / Pascal PoggiHello, a lot of delay in understanding, but what to say in the face of the following RT2020 and the approach of the passive house which interests more and more pros and customers who will no longer want to burn their money through the windows tomorrow... Are there thermal obligations for manufacturers to suddenly come out with ultra-efficient boilers that consumers would have appreciated?Delay by consequences while advance by good information allows people to no longer spend their money on calories... The RT2012 in the text of the Grenelle de l'environnement has voluntarily given time to industrialists to get out " finally" from their boxes the solutions """suddenly""...!!! The house without heating exists and by the materials the investment is not for all that superior to these complex techniques which in time will still repioche in the people's pockets. Heat pumps or money pumps... ask the first ones in the 80s who played technology after 10/15 years, and see the winners and the same losers... Simple reflection now between the interest of the state and jobs or those of consumers... that is the question. Remains the old building which represents 80% of sieves thermally in France, but pumps in these leaking envelopes or reviewing the built envelope, another story which postpone the end... Salutations.Enter your Nickname (your comment will be published under this name)Enter your email (an alert will be sent to this address to notify you of the publication of your comment)Your comment will be published as soon as possible after validation by our moderators.© 2011 Batirama.com |produced by BIP Professional Information |Legal notices |ARTIDEVIS |ARTIPRIX |Notifications Update ARTIDEVIS V9