Controlling under surface heating/cooling by supplying liquid to at least two supply loops in an under surface heating/cooling system, and controlling the flow of the liquid on and off such that during the duty cycle the flow is high and between the duty cycles the flow is off. Room temperature is controlled by controlling the percentage of the duty cycles, which percentage is determined on the basis of the heating demand of the rooms. Different loops are controlled such that at least in two different loops the duty cycles start at different moments.

A hydronic panel and system for heating and/or cooling a room is disclosed. The hydronic panel includes a plurality of contiguous channels. A first chamber is located at a first end, preferably the upper end, of the panel and includes an inlet and communicates with a first subset of the channels. A second chamber is located at an opposite end of the panel and communicates with the first subset and also with a second subset of the channels. A third chamber is located at the first end of the panel, the third chamber communicates with the second subset of the channels and includes an outlet. In this configuration, heated or cooled water flows from the inlet into the first chamber, through the first subset of the channels, to the second chamber, through the second subset of the channels, into the third chamber and out the outlet. Consequently, the heated or cooled water can heat or cool the space. In addition to at least one hydronic panel, the system includes a source of heated and/or cooled water under sufficient pressure to cause the water to flow through the panel. The system also includes a controller to control one or both of the temperature of the water and the flow rate of the water through the panel.

A thermal wall system may include a plurality of blocks configured to interconnect with each other forming a monolithic wall. The plurality of blocks form a series of vertical interior cavities that each extend from a top of the plurality of blocks to a bottom of the plurality of blocks, and tubing vertically extends through the series of vertical interior cavities.

The disclosure discloses a multi-type air conditioner system including: an outdoor machine, a refrigerant pipe connected with an output end of the outdoor machine, a manifold connected with an input end of the refrigerant pipe, an indoor machine connected with an output end of the refrigerant pipe, and a controller connected respectively with the outdoor machine and the indoor machine through a shielded signal line, wherein the multi-type air conditioner system may further include: a pipe set including a composite pipe, a third cutoff valve, a third filter, a third electronic expanding valve, a fourth cutoff valve and a pipe control board. With the disclosure, heating can be provided by precisely controlling indoor temperature and effectively lower power consumption.

The disclosure discloses a multi-type air conditioner system including: an outdoor machine, a refrigerant pipe connected with an output end of the outdoor machine, a manifold connected with an input end of the refrigerant pipe, an indoor machine connected with an output end of the refrigerant pipe, and a controller connected respectively with the outdoor machine and the indoor machine through a shielded signal line, wherein the multi-type air conditioner system may further include: a pipe set including a composite pipe, a third cutoff valve, a third filter, a third electronic expanding valve, a fourth cutoff valve and a pipe control board. With the disclosure, heating can be provided by precisely controlling indoor temperature and effectively lower power consumption.

A planting system having a plurality of potting trays that can be interconnected in a modular fashion to create a multitude of different configurations. Each potting tray has a plurality of holes operatively connected with a conduit through which plumbing can be incorporated into the planting system to water plants in the potting trays via the plurality of holes. A plurality of pedestals may be used to elevate the planting system. Lateral braces may be used to interconnect the plurality of pedestals.

A planting system having a plurality of potting trays that can be interconnected in a modular fashion to create a multitude of different configurations. Each potting tray has a plurality of holes operatively connected with a conduit through which plumbing can be incorporated into the planting system to water plants in the potting trays via the plurality of holes. A plurality of pedestals may be used to elevate the planting system. Lateral braces may be used to interconnect the plurality of pedestals.

A circulation pump assembly for a heating and/or cooling system includes an electric drive motor (108) and a connected pump housing (106) in which at least one impeller (118) is situated and which comprises a first inlet (112) and a first outlet (114). The pump housing (106) includes a second inlet (122) which is connected in an inside of the pump housing (106) at a mixing point (130) to the first inlet (112). A regulating valve (134), which is designed for regulating the mixing ratio of two flows mixing at the mixing point (130), as well as a control device, which controls the regulating valve (134) for regulating the mixing ration, are arranged in the pump housing (106). A hydraulic manifold is provided with such a circulation pump assembly.

Disclosed is a heating module and a method of manufacturing thereof. The method comprises arranging a first conductive layer on a first surface of an intermediate insulating layer; making a channel on a second surface of the intermediate insulating layer; arranging a heating cable in the channel; filling the channel with a conductive filling material to cover the heating cable arranged in the channel; and attaching a second conductive layer to the second surface of the intermediate insulating layer with a conductive adhesive coating.

A support structure for a heating or cooling system includes a plurality of projections designed to be capable of retaining one or more thermal elements positioned adjacent thereto. The projections are positioned so as to form a first set of substantially parallel undulating channels, each channel having one of the projections forming at least a part of the inner radius of each undulation, with each projection having a recess formed in a side wall thereof facing said channel. The undulations of the channel ensure that a thermal element positioned in the channel will make contact with the projections each time it has to bend around one, without requiring spacing of the projections to squeeze the thermal element. The thermal element can thus be held securely without any play (unwanted lateral movement) in a channel that is slightly wider than the thermal element. Recesses in the channels at the contact points also restrict movement in the vertical direction, thus preventing the thermal element from popping out of the channel, while not requiring any restriction narrower than the thermal element.