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Select an active solar heating systems and collection medium appropriate for the building's heating and cooling system. A solar heating system should be designed to be compatible and interactive with conventional HVAC systems in the building. Water-based systems tend to be most compatible with HVAC systems that also use water as a distribution mechanism, though some interface with air distribution systems. Air-based systems tend to be most appropriate when the building uses a large, centralized air-distribution system. A central heating system has sophisticated controls and centralized ducts that can interface well with a central solar thermal-storage source.

Evaluate water-based collectors. A water-based system typically uses heat exchangers to move heat from the collection medium to the heat-storage or distribution medium. Heat exchanges can transfer heat to water-storage, water-distribution, and also air-distribution systems. (See also Active Solar Heating Systems Hot Water for additional issues to consider.)

Consider air-based solar heating systems collectors. Air-based systems are the least complex of active systems; therefore, they avoid many of the problems of water collectors. Air collectors are typically simple, flat-plate collectors with plastic covers. They are easily serviced, and have less extreme and costly failures. While safe from freezing or boiling, they do take up considerably more surface area, and their ducts and fans require more space than water pipes and pumps. In addition, sealing an air system against leakage and finding and repairing leaks are more difficult than repairs in water-based systems.

When considering air collectors:

Determine the use of the system. A very simple air system can provide preheated air for a mechanical system. This is basically a heating economizer, and it can use control logic similar to that of a cooling economizer. The resulting energy savings are significant if sunny weather typically coincides with the hours when the building needs heat.

Determine heat storage needs. Solar Heating Systems requirements in commercial buildings are greatest in the early morning and evening, when solar heat is not available. These buildings require a thermal-storage system to provide solar heat, on an as-needed basis, after it has been collected.

Consider ventilation air preheat systems. This space heating system uses solar energy to preheat ambient air and bring it into a building's ventilation systems. The system utilizes a dark-colored, perforated, unglazed collector, integrated into the building structure, to preheat the air. These systems have efficiencies as high as 75 percent, require low maintenance, and can be installed economically, depending on the building type, climate, and fuel costs.

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This is a list of towns we service for Construction Management Ambler Bala Cynwyd Blue Bell Cheltenham Gulf Mills Gwynedd Huntingdon Valley Jenkintown King of Prussia Horsham Lafayette Hills Merion Morland Pottsgrove Lower Providence Merion Park Merion Station North Wales Oak Lane Manor Oak Summit Oak lane Oaks Rockledge Roseglen Rosemont Roslyn Heights Royersford Rydal Souderton Spring House Spring Mount Sumneytown Sunnybrook Telford Trappe Trooper Valley Forge Whitemarsh Whitpain Wyncote Wyndmoor Willow Grove Buckingham Doylestown Fairless Hills Hulmeville Neshaminy New Hope Philadelphia Northampton Southampton Abington Narberth Brynmaur Warminster Upper Moorland Lower Moorland Upper Dublin Dresher Feasterville Trevose Bensalem Morrisville Yardley Richboro Ambler Elkins Park Wrightstown Bristol Holland Newtown Makefield Hatfield Montgomeryville Pa Pennsylvania Delaware Valley NJ New Jersey Specialists in Renovations, Fit-Outs, Restoration & New Construction Listing of Cities in Montgomery County Pennsylvania that we serve: Abington Township Ambler Arcola Audubon Bala Cynwyd Belmont Hills Blue Bell Bridgeport Bryn Athyn Cedars Center Square Cheltenham Township Collegeville Colmar Conshohocken Creamery Douglass Township Dresher Eagleville Earlington East Greenville East Norriton Township Elkins Park Erdenheim Fairview Village Flourtown Fort Washington Foxcroft Square Franconia Township Frederick Gilbertsville Gladwyne Glenside Green Lane Gwynedd Gwynedd Valley Harleysville Hatboro Hatfield Township Hollywood Horsham Township Huntingdon Valley Jenkintown King of Prussia Kulpsville Lafayette Hill Lamott Lansdale Laverock Lederach Limerick Township Linfield Lower Frederick Township Lower Gwynedd Township Lower Merion Township Lower Moreland Township Lower Pottsgrove Township Lower Providence Township Lower Salford Township Mainland Maple Glen Marlborough Township Meadowbrook Melrose Park Merion Station Miquon Mont Clare Montgomery Township Montgomeryville Narberth 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