Plumbing Terminology - H

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Heating Plumbers

A heating plumber focuses on the installation repair and maintenance of heating equipment like boilers and heaters. Heaters are commonly used to generate heating (i.e. warmth). Heaters exists for all states of matter, including solids, liquids and gases.

House drain

With a house drain is meant the lowest piping in a house drainage system, this pipe receives the discharge from soil, waste, and other drainage pipes, and then carries such discharge to the house sewer. The house drain ends just outside the front or foundation wall of the building, and operates by gravity.

House sewer

the house sewer is the section of sewer pipe which runs between the house drainage system and the connection to the public sewer or septic tank. House sewers should convey the waste of only one residence.

HVAC - Heating, Ventilating, and Air Conditioning

HVAC is an initialism that stands for the closely related functions of Heating, Ventilating, and Air Conditioning — the technology of indoor or automotive environmental comfort. HVAC system design is a major subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers).

Hydraulic fittings

Hydraulics use extremely high fluid pressures to create useful work, such as in the actuators for machinery such as backhoes. As such the hydraulic fittings are designed and rated for much greater pressures than those experienced in general piping systems and they are generally not compatible for use in general plumbing. More information on hydraulics and their fittings can be found in the hydraulic machinery article.