The need to retrofit a multifunctional coupling tank in a wall-hung furnace system with whole-house radiators depends mainly on the specific heating system design and actual needs. The main function of the coupling tank is to solve the interaction and effect between the heat source and the load, that is, the coupling relationship, such as flow coupling, power coupling, water temperature coupling, pressure difference coupling, etc.
If the heating system is designed to balance the heating needs of the various areas, then there is no need for additional coupling tanks. Because at this time, the output heat of the wall-hung boiler can meet the needs of all rooms without the need for additional adjustments.
However, if the heating system is large, it can lead to the problem of insufficient heat in some localized areas. For example, the problem of low temperature due to unreasonable piping selection, or the design problem of wall-hung boiler for multiple layers, as well as the mixed flow rate and temperature of floor heating and radiator, etc., then it is necessary to add a coupling tank to improve these problems.
In addition, the decoupling tank can also effectively save energy and reduce energy waste. Because the decoupling tank can reasonably adjust the mixing ratio of hot water and return water according to actual needs, so as to avoid the waste of hot water and energy consumption.
In general, the question of whether a wall-hung boiler with a whole house radiator needs to be equipped with a coupling tank needs to be decided on a case-by-case basis. If the system is properly designed, stable, and does not have problems such as local lack of heat, then a coupling tank may not be necessary. However, if there is a problem with the system, or if there is a need to further improve the energy efficiency, then a coupling tank can be considered to solve the problem. It is advisable to make decisions and install under the guidance of professionals.