TYPES OF HEATING SYSTEMS
There are different types of boilers or should I say Heating Systems.
Steam: This heating system is Read Morerecognized by mainly seeing a “sight” glass on unit which indicates the water level inside.OR the type of “breathing or purging valve” that is installed on radiators. The plumbing is slightly different than the hydronic heating system where you will find one or two pipes feeding steam and at the lower end; there is a return that slopes at an angle back to the heating system returning condensated water by gravity. This heating system comes fueled by oil or gas.
Hydronic heating system:Read More You will always notice one or more circulating pumps depending on your building’s heating configuration, which incorporate different zones. There is no “sight” glass. Mostly controls which dictates safe operation of the unit. The valves on radiators are also different. In most cases you will need a flat head screwdriver or a special key to open valve in order to purge air from system. New installation makes it easier to purge air from heating system by installing drain valves in a certain configuration in basement where unit is located. This unit is also fueled by oil or gas. Forced air heating system: Forced air heating system are usually fueled by gas. Once it is turned on, in some units; you will find igniters controlled by thermostats and sensors activate solenoid in gas valve which open and allow gas to be flowing and as a result allow flame to heat core. On temperature, blower is activated which sends hot filtered air through ducts. This heating system usually incorporates AC cooling as well; therefore we have central air.
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FAQ
My gas heating system flame goes out and it’s not relighting.
Read More A: Check to see if pilot is lit. If not, try relighting procedure. This is to make sure the problem is not with a component.SEE “GAS PILOT LIGHT” First turn knob on to pilot (knob is on top of gas distribution valve) pressed and hold down. Using THIS TYPE LIGHTER: if after four or five minutes pilot is not lit then the thermo-coupling device is defective: It’s always good to keep at least two or three of these items in store because these things mostly needed when businesses are closed. Your hot water gas hot water tank also carries thermo-couplings.GO TO OUR CONTACT ME PAGE AND POSE YOUR QUESTIONS AND WE WILL GUIDE YOU IN INSTALLING YOUR NEW THERMO-COUPLING OR TYPE ANY OTHER ISSUES CONCERNING YOUR HEATING SYSTEM AND WE WILL SEEK TO RESOLVE IT.
Universal thermocouple Includes adapter fittings 36-inch length Fits most models For furnaces, boilers, water heaters, and space heaters.
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Components of a Boiler Systems.
1. Boiler Feedwater System. Water that converts into steam by steam boilers system called Feedwater & system that regulates feed water called …
2. Boiler Steam heating System. Steam System is a kind of main controlling system of boilers process. Steam Systems are responsible to collect & control …
3. Boilers Fuel System. Fueling is the heart of boilers process & fuel system consists of all the necessary components and equipment to feed fu
SIMPLE DIAGRAM: STEAM HEATING SYSTEM
HYDRONIC HEATING SYSTEM
FORCE AIR HEATING SYSTEM
Solar Hot Water and Space Heating System With Integrated Boiler
Norm’s system uses a large homemade solar heat storage and drain back tank to provide solar space heating and domestic water heating for his home in Maine. The system integrates the solar heating with a boiler that provides the space and water heating functions when the solar water is not hot enough.The tank, plumbing and heat exchangers are very nicely done and provide a lot of good ideas and construction details. |
Overview
The overall design of the heat distribution system was done by Northeast Radiant Technologies of Gardiner, Maine. One facet of their business caters to DIYers. They also made suggestions on boiler specs that were passed on to George Phelps of Gilman Plumbing and Heating of Newport, Maine. George worked with Quincy Hydronic Technology of Portsmouth, New Hampshire.
Installed system with boiler at upper left.
This system combines a 550 gallon drainback solar tank combined with a conventional propane fired boiler (Biasi Riva Plus). The solar tank has two 60′ copper coils to heat domestic hot water and two 90′ coils for space heating. Either part of the system can operate independently of the other or they can work together. A temperature sensor in the tank is attached to a relay that cuts power to the boiler any time that the tank temperature is greater than 125 F.Read More This temperature was arrived at by running a flow test and determining that the DHW coil in the solar tank will deliver 120 F water continuously when the tank temperature is 125 F.Also the space heating coils will deliver essentially 125 F water to the input of the boiler. Since this is above the normal temperature required for supply to the floor, there is no need for the boiler to run. Both sets of coils in the solar tank can be shut off with ball valves, if need be, and then the boiler will provide DHW and space heating.The input and output of both sets of coils and the supply and return of the radiant floor have inline thermometers to provide information on system operation. There are four SunEarth Empire EC-32 collectors, attached to the south wall of our log home, that have water pumped through them by a three speed Grundfos Alpha pump. I have the pump set to operate at the middle speed. The pump is controlled by a Solar Thermal differential controller that senses the water temperature at the top and bottom of the tank and also the temperature of the air inside the collectors. The controller is set to allow a maximum temperature of 140 F inside the tank. If the tank temperature is below 140, the controller is further set to start the pump any time the collector temperature is more that 16 degrees above the bottom water temperature. The controller turns the pump off if the collector temperature falls to within 8 degrees of the tank water temperature. At this point all the water in the collectors drains back to the tank. The controller has a safety feature which prevents starting the pump if the collector temperature is above a preset upper limit to prevent steam generation. The circulation piping has a Pentair flowmeter which shows water flow rate while the pump is running and acts a sight glass for tank water level when the pump is idle.
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The four Sun Earth collectors
Read MoreThis system is used to provide heated water to two different types of radiant floor heating systems. One part of the heating system is the conventional Pex tubing in concrete floor in the basement area of the new addition.
The first floor of the addition uses Warmboard with Pex-Al-Pex under ceramic tile. The water is circulated through the boiler and the tank heat exchangers by a variable speed Grundfos pump.
The individual zones are regulated by thermostatically controlled valves. At the present time there are four zones working and plans are underway to install four more loops in the old part of the house. These will replace the existing forced hot air system currently in use.
The first floor of the addition uses Warmboard with Pex-Al-Pex under ceramic tile. The water is circulated through the boiler and the tank heat exchangers by a variable speed Grundfos pump.
The individual zones are regulated by thermostatically controlled valves. At the present time there are four zones working and plans are underway to install four more loops in the old part of the house. These will replace the existing forced hot air system currently in use.
Warmboard radiant floor heating.
System Schematic
(Click on schematic for full size)
System schematic diagram As shown in the schematic, all items in green are parts of the space heating side of the system and the items in red are part of the domestic hot water side.Read More
Read MoreIn normal operation valves 2,3,5 and 6 are normally open to allow water to flow through the respective heat exchangers. Valves 1 and 4 are normally closed. If for any reason, it is desired to have the boiler operate without any boost from the solar tank, valves 1 and 4 would be opened and 2,3,5 and 6 would be closed.Pump A is part of the boiler installation and pump B is dedicated solely to pumping water to the solar collectors.Heat exchanger 1 consists of two 90′ coils of 3/4” copper connected in parallel. Heat exchanger 2 has two 60′ coils but otherwise is the same as 1.The boiler that I used has a primary heat exchanger for space heating and a secondary for DHW. Heat Storage Tank. The tank was sized to accept a liner purchased from Tom Gocze at American Solartechnics in Searsport, Maine. The inside dimensions are 55”x55”x48” h. The tank is made from four panels for the side walls, a platform and a removable cover. The cover is sealed on the edges with 0.5” round foam insulation to cut down on evaporation loss. The construction of the tankverticallpanels, platform and cover are described below. panels, platform and cover are described below.