Electric boiler for whole house hydronic heat
2022年12月3日 · 1. Install a larger air-to-air heat pump with enough capacity to meet your heating needs. 2. Keep the propane boiler, and only use it to supplement the heat pump on the coldest days. 3. Get an electric boiler, and use it as in #2. 4. Get an air-to-water heat pump.
Adding Air Conditioning to Radiant-Floor Heat
2017年2月27日 · The complexity of the system adds to the cost, and air conditioning must be added separately. Radiant-floor heating systems are unobtrusive because the plastic tubing that distributes hot water around the house is buried in or under the floor. Homeowners like that. But because there are no air ducts with a radiant-floor system, air conditioning ...
Heating a Superinsulated House in a Cold Climate
2015年12月8日 · Fujitsu has recently come out with a new model for “extreme low temperature heating,” which will heat when the outdoor temperature is as low as -25°C (-15°F). Unfortunately, this is not sufficient for our cold Canadian prairie winters. Last year we had a record number of cold days for the winter: 58 days of -30°C (-22°F) or colder.
Just Two Minisplits Heat and Cool the Whole House
2012年8月17日 · The entire home is heated by two Mitsubishi ductless minisplit units. Carter Scott was one of the first builders bold enough to build a cold-climate home heated by only two ductless minisplit units (one in the downstairs living room, and one in the upstairs hallway). Skeptics predicted that the unheated bedrooms would be cold and uncomfortable.
Radiant Heating and Cooling - GreenBuildingAdvisor
2021年7月19日 · A radiant floor system powered by a boiler that produces 75,000 or 80,000 Btu per hour is overkill, what Theodore Bernstein would call an “atomic flyswatter.”. The case for an expensive heating system built around a powerful boiler begins to collapse as the building enclosure becomes better insulated and air-sealed.
Q&A Spotlight: Will One Radiant Floor Heat Two Stories?
2010年10月18日 · Michael Schonlau is building a house in Omaha, Nebraska, where he can expect 6,000+ heating degree days a year. He's planning on putting a radiant-floor system in the basement slab of the ranch-style home with a footprint of about 1,600 sq. ft. In a recent posting on GBA's page, Schonlau asked whether he'll have to install radiant loops under the subfloor of …
Whole-House In-Floor Radiant Heating - GreenBuildingAdvisor
2014年1月19日 · Radiant floors can save some energy over ducted air. Besides Dana's points, radiant floors almost always reduce the temperature delta needed, which makes heat pumps and condensing gas systems more efficient. Hydronics allow buffer tanks, making low loads a non-problem. Cost and complexity are legitimate downsides.
Heating Historic Houses With Heat Pumps - GreenBuildingAdvisor
2021年2月8日 · This 1850s Colonial in New York's Hudson Valley will be getting upgrades to the building enclosure aimed at improving energy efficiency. Its new owner wonders whether a minisplit heating and cooling system will be a good fit. Photo courtesy Curtis. Air-source heat pumps, and particularly ductless minisplits, are becoming the go-to HVAC choice ...
Radiant-Floor Heating - GreenBuildingAdvisor
2009年3月31日 · Radiant-floor heating is a way of delivering heat through the floor — usually with hot-water tubing embedded in a concrete slab. It’s a very popular heating system advanced by zealous proponents. If you want to pick a fight in the building industry, simply criticize such sacred cows as radiant-floor heating or ground-source heat pumps (stay ...
Job Site Heaters - GreenBuildingAdvisor
2023年11月8日 · The disadvantage is the cost. Electricity rates in the area are around $0.14 per kW. At 3300 watts, or 3.3 kW, the cost per hour is a little over $0.45. A simple electric heater is the cleanest of all options. Although electric heaters are cheaper to operate, they also have a lower heat output; 3.3 kW produces around 11,250 BTU.