Boiler return temp
Hi I have a slant/fin gas boiler, probably close to 20 years old, which is connected to a single zone of old cast iron rads. Even after running for an hour (PSI normally around 20-22 hot) the return...
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Heating pipe is whistling very loud
Hello! I live an a fifth floor apartment (top floor) and my roommate and I each have a heating pipe (I think that’s what it would be called) in our rooms. Simply put it is making a a blowing, whistling...
View ArticleExpansion tank question
I have a Weil McLain ultra 155 boiler with expansion tank coming off the taco air scoop valve just underneath the branch of the taco Waterfill valve that expansion tank 8 psi. As per the manual I...
View ArticleHelp! Boiler not responding to call for heat
HELLO! I could really use your expertise! I have a Laars EBP0110, that is currently not responding to the call for heat. The domestic hot water is working perfectly. The circulator module is on and...
View ArticleWashing soda
Last time I skimmed a steam boiler the supply house told me to just use washing soda. Is there anything wrong with doing this? Also follow up question the fill for the steam boiler should it always be...
View ArticleTaco ZVC406-EXP & Smart Thermostats
Looking to install wifi thermostats on my older Taco zone control panel and need to know where to locate my Common wires. I attached a pic showing where I believe they should go...
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New Boiler Settings: Warm or Cold Start?
We are gearing for our first full winter with our new Peerless MI-03 (70mbh input/50mbh Net output) boiler. Boiler was installed at start of Spring so we had some heating application then. Heat Loss...
View ArticleOlder expansion tank
Went to a house with an older expansion tank that is mounts between the joist, also noticed there was no gauges or pressure relief valve . I went for a no heat call, pump was shot. No air separation...
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Furnace help
I’m trying to purge my system but it’s not pushing the water out. What can I do? 1960s crane furnance. 1 zone going from basement to second floor.different heating for first floor.
View ArticleNTI Trinity to replace oil boiler
I recently purchased a house with an oil-fired boiler that's around 30 years old and a hot water tank that's 4 years old. I plan on switching to natural gas in the spring. The first plumber I got a...
View ArticleFurnace ignites only two burners out of four. Propane
Hello I have a american standard furnace approximately 30 years old. I have replaced the igniter, flame sensor and gas valve was replaced two years ago. The furnace tries to light on first try, it goes...
View ArticleAdvise wanted: Replacing a residential boiler and water heater
Hi everybody. I’m a homeowner looking for some advice about replacing a boiler and how best to handle my poor water quality. This is my first house with a boiler, gas heating and a radiant heating...
View ArticleI am researching installation of a gas boiler for heating and indirect DHW.
I was initially researching the installation of a condensing Combi unit (Lockinvar Noble) to provide DHW and heat for my radiant flooring, but after talking to a couple of local HVAC techs they advised...
View ArticleSystem design help.
Long time reader first time poster here. Thanks for having me. I'm designing / installing a heating system for a building I'm redoing and its mine. I've been installing HVAC systems for 15 years, but...
View Articlemod/con on one pipe
Hi all. I am looking to replace my 1957ish 87,000 btu net load boiler. My house is 1500 sq ft. with a heat loss of 48,254. I am planning to replace windows soon so that number should improve a bit. It...
View ArticleBurnham High Effeciency Boiler Choices
I'm looking to upgrade my 30-40+ year old gas boiler for my hot water baseboard system in my single floor ranch in Massachusetts. There are 3 zones, and I want to add a 4th (indirect HTP 45 gallon...
View Article1013-200 boiler control
1013-200 boiler control. Has a green light and won't do anything. The control is 2 years old I have 2 separate boilers Changed a few things and can not get this to work. Any ideas would be helpful....
View Articletwo residential hot water heaters instead of one commercial
Hello, I am on the board of a 9 unit condo building with about 30 residents on three stories (and three tiers connected). Our 100 gallon A.O. Smith is leaking after 9 years and needs to be replaced. A...
View ArticleIdeas for resolving one hydroair zone freezing
I am a homeowner with a Buderis gas boiler that supplies hot water to 6 radiant zones, 4 hydroair handlers, and the hot water tank. All of the zones and air handlers are within conditioned space with...
View ArticleLocknivar NKC199N Combi boiler steady dripping from pressure outlet pipe
My Locknivar noble nkc 199 boiler is steadily leaking from pressure outlet pipe. Pressure looks low though (10psi). Any ides what could be going wrong?
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