A heating system includes a first pipe portion configured to connect to piping that returns water from a heat exchanger in a building back to a boiler in the building. A longitudinal axis of the first pipe portion can extend vertically. A second pipe portion can have a first end, a second end, and a longitudinal axis extending therebetween. The first end of the second pipe portion can be configured to connect to piping that supplies water to the heat exchanger. The second end of the second pipe portion can be configured to connect to the second end of the first pipe portion. The longitudinal axis of the second pipe portion can extend parallel to the longitudinal axis of the first pipe portion. The second pipe portion can be spaced-apart from the first pipe portion. The system can be in the form of an installation kit for a heating appliance.

Heat and cold supply subatmospheric system for air conditioning refers to the area of heat power engineering, namely energy-saving technologies and is designed for autonomous heating, hot water supply and cold supply of residential, public and industrial buildings. To implement effective heat supply, a vacuum-steam method of heat transfer by steam with a controlled depth of pressure drop is used, heat supply subsystem efficiency reaches 0.9. Cooling supply subsystem, which is integrated with the heat supply subsystem, includes: installation of a non-absorbed absorption water cooling refrigeration machine and a system of air coolers of indirect evaporative cooling in a vacuum environment, while ensuring energy efficiency with an EER of 12.5 kWt/kWt.

A heating system includes a first pipe portion configured to connect to piping that returns water from a heat exchanger in a building back to a boiler in the building. A longitudinal axis of the first pipe portion can extend vertically. A second pipe portion can have a first end, a second end, and a longitudinal axis extending therebetween. The first end of the second pipe portion can be configured to connect to piping that supplies water to the heat exchanger. The second end of the second pipe portion can be configured to connect to the second end of the first pipe portion. The longitudinal axis of the second pipe portion can extend parallel to the longitudinal axis of the first pipe portion. The second pipe portion can be spaced-apart from the first pipe portion. The system can be in the form of an installation kit for a heating appliance.

A steam trap cover has a front panel, a back panel, a top panel, and a first and a second end panel joined along edges forming a rectangular enclosure, and a bottom panel joined along one edge, such that the bottom panel may be opened or closed, the first and second end panels each having a circular opening and a slit from a bottom edge of the end panel into the circular opening. The cover is characterized in that with the bottom panel open and the slits in the end panels separated the cover is adapted to be placed over a steam trap having an inlet and an exit pipe until the entrance and the exit pipe are enclosed in the circular openings, after which closing the bottom cover completely encloses the steam trap.