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RJ

RJ

Joined on February 3, 2007

Last Post on July 18, 2014

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balance

@ January 15, 2014 4:35 PM in Dumb furnace question

If you can access the supply plenum I would recommend installing balancing dampers , you can get round manual dampers online or Hercules supply in Denver should have them.  You would need to disconnect the round duct or flex at the plenum than install damper

exp tank

@ January 10, 2014 11:35 AM in compression/expansion tanks

I agree with Mark,   The benefit of the compression tank is that any air  that may get into system from after any repairs will end up in tank if installed correctly.  diaphram or bladder tanks do not afford this. Bell and Gosset makes a number  of valves that shoud be installed on the compression tank,  airtrol fitting, tank fitting and drain valve.  I would normally have to drain the tank at least once during the heating season, and check the guage glass gaskets for leaks.

electric heat

@ January 7, 2014 4:39 PM in Goodman electric furnace

First question would be why a cooling only unit    next you need a t-stat that will cycle fan on in heating,  Honeywell makes some T8600 ?  hopefully you have a large KW heater and not just supplemental heat, also electric heat requires a large electrical service and separate disconnect.     Might want to get a heat pump condensing unit reinstalled

filter

@ January 6, 2014 10:19 AM in Help! Furnace only blowing cold air

Check for a dirty furnace filter or obstructed return air to furnace,  Some older furnaces will cycle the fan on when the furnace goes off on high limit  (return air temp gets to hot )

breaker

@ January 1, 2014 11:10 AM in HVAC Electrical Bard Unit

Try  San Francisco Switch gear      415-522-0762

duct

@ December 26, 2013 6:27 PM in Help, 10"duct through 9" space

check to see about a oval duct fitting

Christmas

@ December 24, 2013 12:54 PM in Christmas

Merry Christmas to everyone and their families.     john 3:16

rydlime

@ December 14, 2013 12:05 PM in rydlyme descaler

They say its biodegradable and non toxic, also they claim you you can get it on your hands without irritation,  I never got a chance to use it but looks like a great product

shims

@ December 9, 2013 3:54 PM in is it worth insulating riser inside the wall of the main house?

Very interesting, can you post a picture of this, maybe around a piece of scrap pipe11

lwco

@ December 8, 2013 10:50 AM in Puzzler: Condensate Return Leak, LWCO, Auto Feeder

lwco can be taken apart and cleaned, the sa101 has a strainer that should be cleaned or replaced at least every 6 months, a plugged up lwco could be part of the problem as others have said 

t-stat

@ December 6, 2013 10:19 AM in Honeywell Visionpro problems

White Rogers has a good line of prog. t-stats with optiomal sensors

r_stahmer@yahoo.com

@ December 4, 2013 4:53 PM in Thermostatic Rad Valve Control

type Danfoss in the site search   look for July 29 2009  old document from Bill Burton

Danfoss

@ December 4, 2013 4:43 PM in Thermostatic Rad Valve Control

the boiler/steam system must go to 0 psig on off cycle and have a numerous cycle rate for these 1 pipe valves to work correctly, if the system never draws air in the Danfoss valves often wont close.   I posted the details in the past and believe I sent a document from Danfoss (1983) to the archives

pilot

@ November 24, 2013 10:38 AM in need pilot light assembly for 1985 honrywell/kenmore furnace

can you post a picture13

combustion air

@ November 21, 2013 12:50 PM in Combustion air

I have used fan in a can on several jobs, on 1 job i had to install 2 of them,  they have air flow safety switch that you can wire boiler control circut through,  good product, they were about a $1000.00  4 yrs ago for a 10 inch mod. but well worth it

radiators

@ November 21, 2013 11:18 AM in radiator gushing water, loud banging, gurgling sounds

Read my post    rad. filling with water  11-16-13         6  RJ

valves

@ November 16, 2013 12:23 PM in Radiators fill with water

As Dave said radiator shut off valves need to be open,  I have found several times where the disc ( the part of the valve that closes against the valve seat ) is deteriorated or broken, allowing steam in when valve is shut but not allowing condensate to drain back.   The radiator needs to be disconnected from the valve than you can look inside valve outlet for seat damage.   recommend someone with boiler exp. doing this

piping

@ November 11, 2013 1:20 PM in I lost a job to a company that did this:

Copper pipe allows no swing joints which equals extra stress on boiler sections ( if sectional ) which can cause premature boiler leaking

water level

@ November 8, 2013 3:24 PM in MAJOR WATER HAMMER

Do you remember what the water level was on the old boiler, or do you have any data on the old boiler

bearings

@ November 4, 2013 11:25 AM in blower assembly

ball bearing and set collar      start by checking new parts make sure shaft is straight and there are keyways or flat sots in shaft. Sand and put rust dissolver on shaft by bearings, cut shaft and remove old wheels, install new wheels , slide shaft through wheels  dont forget set collars which I like on inside of bearings , you can move shaft back and forth to install bearings,   bearings are removed and instlled in bracket by turning 90 degrees,   tighten blower wheels on shaft, reinstall blower pulley

heater

@ October 30, 2013 1:14 PM in InfraRed radiant shop heater - need help !

I recommend you have a hvac contractor look at it   could be gas press. defective element.  Remember unvented radiant heaters require a minimum of 4 cfm of fresh air per 1000 btus, either mechanical or gravity per code

air

@ October 29, 2013 8:11 PM in baseboard stays cold

When bleeding air from a system which can travel throughout the system you need to keep system press. up, this may require partially opening fast fill valve if you have one or introducing another water source other than the prv. As far as the piping  the pump is a ( differential machine ) if your piping is not installed or balanced correctly your pump cant cause a differential and a no or per flow condition will exist
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