Items Tagged with 'hydronic heating'

Last month's column discussed piping for air-to-water heat pumps. A 2-pipe system allows staging but not simultaneous heating and cooling, while a 4-pipe system with motorized valves enables both modes of operation.

Last month, we started with an air-to-water heat pump for space heating and added an auxiliary heat source and chilled water cooling. This month, we’re adding domestic water heating, similar to last month’s setup.

We tackled issues at a 1953 apartment complex with a failing steam system, repairing pumps and leaks. This year, we discovered significant deterioration in the 6-inch steel steam main while preparing for its replacement, highlighting the poor condition of the aging infrastructure.

Air-to-water heat pumps, especially for larger systems, can be used in stages for efficient temperature control and flexibility, utilizing variable-speed compressors and specific piping setups to manage heating and cooling loads.

Keefer Rader of Outlaw Mechanical integrated hydronic heat pumps into a solar-powered home, using a dual-fuel system with U.S. Boiler Co.'s products to manage temperature needs and isolating oxygenated radiant loops with a heat exchanger, completing the retrofit in five days.

Standardized piping layouts for air-to-water heat pumps can improve acceptance by facilitating a basic heating system that uses a monobloc heat pump with a 30% propylene glycol solution for freeze protection.

A review of a flawed hydronic heating system uncovers critical errors, such as improper circulator placement and restrictive mixing valves, leading to uneven warmth and corrosion issues. This underscores the need for proper design and installation in hydronic systems.

A hotel’s aging hot water system faces upgrades as leaking tanks are set to be replaced with smaller units. While a full redesign is desired for efficiency, budget constraints may limit the project scope, causing temporary hot water disruptions.

Hydronically-heated concrete floor slabs offer comfort but can be slow to warm up. A proposed solution uses a heat pump and variable-speed circulators to provide rapid heating through air handlers, ensuring quick warmth during cool days while maintaining energy efficiency.

Vicinity will import renewable electricity through its co-located substations to power the electric boiler, generating carbon-free eSteam.