Heating Helper

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INTRODUCTIONThere is now only a fraction of infiltration air coming into this buildingas compared to years ago and that the new boiler and other appliancesare much more efficient and much more dependant upon proper air tofuel mixtures for efficient combustion. Add to this the fact that the buildingnow has additional devices that can depressurize it or take air outsuch as exhaust and ventilation fans, fireplaces and clothes dryers andyou may begin to appreciate why the confined space consideration isso important. Here are the guidelines and an example of how to figurefor a confined space based on average type construction such as 2”x4”insulated sidewalls, attic insulation and insulated windows.ExampleConfined Space = Ratio of Cubic Feet of Area to Total BTUH Input in1000’s of BTUH (MBH)Less than (
INTRODUCTIONEven newer chimneys with a properly configured and installed liner butsituated on the outside of the building or house can be harmed by fluegas condensation. Extreme caution should be exercised when attemptingto use chimneys such as these. It would advisable to install aninsulated metal liner in these types of chimneys to protect them againstcondensation damage and to allow the boiler and other attached appliancesto perform properly.Chimneys...Bigger is not necessarily better!Caution should also be exercised when using larger internal linedchimneys with new boilers and other appliances. Bigger is not necessarilybetter when considering a chimney’s venting capabilities. Youneed to remember that a new boiler’s flue gas temperatures are lowerthan ever before and may not be able to establish the draft you needin one of these larger chimneys. Even if they can establish proper draftthe concern still exists of the effect that flue gas condensation will haveon life of the chimney. Be sure to abide by the venting regulationsadopted and enforced by your state or locality regarding proper ventingpractices.Most, if not all, higher efficiency gas boilers these days are vented bybuilt-in induced draft fans and utilize AL29-4C stainless steel, PolypropyleneConcentric or even PVC/CPVC venting materials. Most of theseboilers allow for venting distances of up to 50 equivalent feet of ventingand have a multitude of venting options such as sidewall, vertical andconcentric venting. Bear in mind that the venting options and materialslisted in the Installation Manual for one manufacturer’s boiler are proprietaryto that particular boiler and may not apply to a different modelor brand of boiler. Read the Installation Manual carefully and abideby the information provided in that manual to ensure that the boileroperates correctly and safely. If you don’t see a particular venting optionlisted in that boiler’s manual then more than likely it has not beentested or certified and you cannot use it.Aftermarket sidewall power venting equipment and related controlshave been commonly used when a chimney is not an option. Becautious of using them with the boiler and other equipment you are installingin that they will more than likely involve cutting into the boiler’sfactory wiring harness. If the person performing this wiring procedure isunfamiliar with the internal wiring of the boiler and11
Page 6: INTRODUCTIONSizing for Tankless Hea
Page 13 and 14: INTRODUCTION"Pumping Away"...but fr
Page 15 and 16: INTRODUCTIONvia outdoor reset techn
Page 17 and 18: CHAPTER 1 - STEAMONE AND TWO PIPE S
Page 19 and 20: CHAPTER 1 - STEAM3. DRY RETURN - Ca
Page 21 and 22: 21PROPERTIES OF SATURATED STEAMCHAP
Page 25: CHAPTER 1 - STEAMSTEAM CONVERSION F
Page 29 and 30: CHAPTER 1 - STEAMMultiple Boilers29
Page 31 and 32: CHAPTER 1 - STEAMB. Boiler Feed Pum
Page 33 and 34: CHAPTER 1 - STEAMSizing of Vacuum P
Page 35 and 36: CHAPTER 1 - STEAMGUIDELINESCONVERTI
Page 37 and 38: CHAPTER 1 - STEAMPipeSize1/2"3/4"1"
Page 39 and 40: CHAPTER 2 - HOT WATER PIPING - RESI
Page 41: CHAPTER 2 - HOT WATER PIPING - RESI
Page 52 and 53: CHAPTER 3 - PIPING DIAGRAMSPiping &
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CHAPTER 3 - PIPING DIAGRAMSPiping:
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CHAPTER 3 - PIPING DIAGRAMSPiping:
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CHAPTER 3 - PIPING DIAGRAMSRECOMMEN
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CHAPTER 4 - DOMESTIC HOT WATERB. CO
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CHAPTER 5INSTALLED RADIATION: DETER
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70SIZING: CONVECTORS - COPPERFRONT
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CHAPTER 6 - WATER CONTENTA. RADIATI
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CHAPTER 7 - HEAT LOSS CALCULATIONSH
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CHAPTER 8 - VALVES: TYPES AND APPLI
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CHAPTER 9 - VENTING FLUE PRODUCTSC.
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CHAPTER 10 - MISCELLANEOUSElectric
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CHAPTER 10 - MISCELLANEOUSSecondfor
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CHAPTER 10 - MISCELLANEOUSACIDITY A
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CHAPTER 10 - MISCELLANEOUSCAPACITY
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CHAPTER 10 - MISCELLANEOUSCONVERSIO
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CHAPTER 10 - MISCELLANEOUS∆(delta
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CHAPTER 11 - PRODUCT REVIEWGAS BOIL
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CHAPTER 11 - PRODUCT REVIEWSeries 2
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CHAPTER 11 - PRODUCT REVIEWOIL BOIL
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CHAPTER 11 - PRODUCT REVIEWRSA Seri
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CHAPTER 12 - Wiring DiagramsWiring:
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NOTES
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