A first bracket is attached to a heat source apparatus. A second bracket is fixed to a wall. The second bracket has an engagement portion over which the first bracket is hooked. The first bracket has a through hole through which the engagement portion is inserted. The first bracket has a plurality of protruding portions that protrude from an upper end of the through hole into the through hole. The plurality of protruding portions are arranged side by side along the upper end of the through hole.

A water tank mounting structure and a ventilation treatment apparatus for such structure. The water tank mounting structure comprises a cavity for containing a water tank and a side wall defining the cavity, wherein the side wall comprises an inner side wall spaced apart from an outer side, a first gas hole provided in the inner side wall, and a second gas hole provided in the outer side wall, both holes arranged in a staggered manner perpendicular to the side wall. The arrangement of the double-layer side wall, and the first and second gas holes in the inner and outer side walls, respectively, allows for hot gas in the cavity to be effectively removed. The staggered arrangement of the gas holes allows for water to flow downward along the side wall without invading the cavity when water enters through the second gas hole. A waterproof effect is achieved.

An air handling unit (AHU) for a heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a housing and a combustion heater disposed within the housing. The housing includes a combustion section with a first channel and a second channel. The combustion heater includes heat exchanger tubes and a tube support that supports heat exchanger tubes within the combustion section. The tube support slidably disposed in the first channel and the second channel. The combustion heater configured to be slidably removable from the AHU. An AHU for an HVACR system includes a housing with a fan section and a fan assembly disposed within the housing. The fan assembly including a pair of grooves slidably disposed on a pair of rails of the housing. The fan assembly configured to be both slidably removable from the AHU and liftably removable from the AHU.

An air handling unit (AHU) for a heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a housing and a combustion heater disposed within the housing. The housing includes a combustion section with a first channel and a second channel. The combustion heater includes heat exchanger tubes and a tube support that supports heat exchanger tubes within the combustion section. The tube support slidably disposed in the first channel and the second channel. The combustion heater configured to be slidably removable from the AHU. An AHU for an HVACR system includes a housing with a fan section and a fan assembly disposed within the housing. The fan assembly including a pair of grooves slidably disposed on a pair of rails of the housing. The fan assembly configured to be both slidably removable from the AHU and liftably removable from the AHU.

A water heater and a cover assembly for the water heater is provided. The water heater includes a mixing valve disposed in fluid communication with each of a hot water conduit and a cold water pipe, to regulate temperature of hot water received from the hot water conduit. The cold water pipe branches from a cold water conduit and extends along a longitudinal axis of the tank to connect with the mixing valve. The cover assembly is mounted on a tank of the water heater. The cover assembly includes a first cover to conceal the cold water pipe, and a second cover to conceal the mixing valve and the hot water conduit extending between the tank and the mixing valve. The second cover is removably coupled to the first cover via one or more coupling elements.

A substrate processing apparatus, a method, and a program for controlling temperature of the substrate processing apparatus. A substrate processing apparatus comprising: a mounting table configured to hold a substrate to be processed in a vacuum processing container; a heat transfer gas container placed on a back side of the mounting table with a gap between the mounting table and the heat transfer gas container and configured to be cooled by a refrigerator; and a control device configured to control heating of the refrigerator to the vicinity of a first temperature on the basis of a temperature of a first control point provided near the refrigerator and then switching the heating control for the refrigerator on or off.

A substrate processing apparatus, a method, and a program for controlling temperature of the substrate processing apparatus. A substrate processing apparatus comprising: a mounting table configured to hold a substrate to be processed in a vacuum processing container; a heat transfer gas container placed on a back side of the mounting table with a gap between the mounting table and the heat transfer gas container and configured to be cooled by a refrigerator; and a control device configured to control heating of the refrigerator to the vicinity of a first temperature on the basis of a temperature of a first control point provided near the refrigerator and then switching the heating control for the refrigerator on or off.

Various implementations include a hot water heating system having a spine and two or more water heating units. The spine includes a top surface defining one or more top openings, two or more coupling areas, and cold water, hot water, and fuel manifolds. One or more top openings provide access to a cold water manifold inlet, a hot water manifold outlet, and a fuel manifold inlet. At least one of the coupling areas is located above another coupling area when the spine is oriented with the top surface facing upwardly. The water heating units are coupled to coupling areas such that a cold water inlet of the unit is fluidically coupled to the cold water manifold outlet, a hot water outlet of the unit is fluidically coupled to the hot water manifold inlet, and a fuel inlet of the unit is fluidically coupled to the fuel manifold outlet.

Various implementations include a hot water heating system having a spine and two or more water heating units. The spine includes a top surface defining one or more top openings, two or more coupling areas, and cold water, hot water, and fuel manifolds. One or more top openings provide access to a cold water manifold inlet, a hot water manifold outlet, and a fuel manifold inlet. At least one of the coupling areas is located above another coupling area when the spine is oriented with the top surface facing upwardly. The water heating units are coupled to coupling areas such that a cold water inlet of the unit is fluidically coupled to the cold water manifold outlet, a hot water outlet of the unit is fluidically coupled to the hot water manifold inlet, and a fuel inlet of the unit is fluidically coupled to the fuel manifold outlet.

A heating device having a holding apparatus to accommodate a control unit, the holding apparatus having a receiving part. The receiving part has at least one storage tray for tools and/or at least one receptacle, in particular two receptacles, for tools. A holding apparatus for a heating device is also described.