Munchkin Versions and control stategies/blocked vent control/ vision
I have a Munchkin in service in a staged setup that replaced a heatmaker. i make it out to be a prerevision munchkin that was upgraded from the honeywell control to the 925 so it is now Rev 1 although...
View ArticleReplace prorated warranteed(40%) cast iron heat exchanger or replace 18 yr....
We have a n 18 yr. old burnham series three. The heat echanger is non useable. Do I go with a new boiler or all the stressors of getting the exchanger replaced. Looking at a lennox gwb3-e replacement....
View ArticleNeed help deciding gas condensing boiler
What do you recommend between Buderus GB142-24, Greenstar ZBR21-3, HTP EFT-80, and Triangle Tube PA80? Thanks.
View ArticleMillion dollar question what size modcon gas boiler
Hi everyone I'm a homeowner in the market to replace my old cast iron boiler. I'm looking at going to a 95+ afue modcon boiler to take advantage of the rebates offered by massave. I live in Seekonk...
View ArticleBoiler water pressure
My boiler pressure is always around 30-35 PSI. I have bled water off but it recovers back to 30-35 within seconds. Help,please.
View ArticleBuderus GB 142 ignition issue (6A)
New customer has a GB142 with 6A code. Previous company replaced gas valve and venturi. If I put my hand over venturi, the unit will light. Hand off.....and no ignition. Gas pressures are all within...
View ArticleNo heat, Taco ZVC404 only power light on
The heat was not coming on per my wife. Propane Crown Boiler (18 years old), Taco ZVC404(4 zone but I only use two, two story cape house) 1st floor thermostat calling for heat, but the only light on is...
View ArticleNew Lochinvar install. Primary Loop Delta T question
Just wanted to thank everyone here for all the great information posted on this site. I've been loitering around the site while installing a new boiler and the info I've found here has been invaluable....
View ArticleESSEX gas valve (Call out for Tim)
Does anyone have any info on an Essex SX 243 gas valve; 243110801-135; 24 volt .2 amp Class I 6.4 set at 3.5 WC; cust # EF530c(?) Z 301. It is on a Bryant/Dunkirk 246B-6, 525,000 BTUH input---1979??...
View ArticleNo power to the thermostat
I have a steam and gas boiler and there is no power to the thermostat. The thermostat is wired, mercury, round Honeywell. I opened up the thermostat and used a multimeter to check for voltage on the...
View ArticleConcentric Vent modification.
Wondering how I can achieve greater height off roof with my concentric vent for my Modcon boiler. its currently 14in from roof to bottom of rain cap where intake air goes in. My boiler manual states I...
View ArticleOld Warm Morning = cold heart
So my very old Warm Morning gas heater has been having intermittent pre ignition / flashback problems. I have cleaned the cast iron burner several times. Checked the orifice, it’s clean. Adjusted...
View ArticleBoiler stops running after a few hours
It is a gas steam boiler with a wired-in thermostat. Everyday, it always runs first time I turn it on. But it stops running after about 2 hours. When it runs, I use a multimeter to check and find...
View ArticleSmart Thermostats for Viessmann Vitopend 100
Hello, I am looking for recommendations for a smart Internet-enabled thermostat to remotely control my Viessmann Vitopend 100. My research shows that tado thermostat is compatible with my heater. But...
View ArticleMain Vent Help
Hello, I've been fidgeting with my steam heat system since I bought my house almost 3 years ago. I recently decided to get a repair man to finish off the rest of the job but after his initial visit...
View ArticleDoes Buffer Tank with Modcon Make a Precise TDR Match Less Critical?
(HO here) It seems to me that with a mod con and buffer tank, firing cycles would be longer and the system could sip from the buffer to meet the heating load rather than from a highly modulated burner,...
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How to bleed - water feed on return side.
Hi there. I have a three zone radiant heating system with 3 circulators. The water feed is piped directly to the return line on one of the zones. If I try to isolate any of the other zones - how do I...
View ArticleFor hot water heating system spontaneous boiler pressure rise and opening of PRV
The Burnham boiler for my forced hot water heating system has been making a lot of noise. So I decided to drain the boiler and refill it to the manufacturer’s spec of 12 psi with the water cool. About...
View ArticleNoritz Combi Nightmare
Hi. I am struggling with a new Noritz CB 180 installation. We have a brand new install - less than a month old. Its a CB 180 in a condo serving both domestic hot water and a First Co Airhandler Hot...
View ArticleBuderus GB142-60 AM10 Setpoint
New/Used install of boiler unit DHW off, Space heating temp dial set to 125 degrees. AM10 module is calling for a flow temp of 120, boiler maintains a 100 degree temp with a Delta T of 25-30 degrees....
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