boiler

I'm installing a new boiler next week. I'm replacing a 30 year old Burnham combi boiler with a new Pensotti and HTP indirect. I'm replacing everything except the 3 radiant zone copper and baseboard heaters. The old system had a significant leak that was constantly being replenished with the...

Hello, We have a single steam pipe system with a combination unit that is about 10 years old. When we moved in 5 years ago, the shower was always hot. Recently, the only way for the shower to get hot, is to turn up the heat and have the boiler kick on. The other faucets in the house don't have...

First off let me thank you for opening and reading this post. Any advice will be appreciated. I currently have a 1948 3500sqft (3700sqft with walk in attic storage-currently unheated) house heated by 19 wall convectors and a Burnham series II boiler. Last winter 2-3 of the radiators...

I recently bought an old house. It has a gas-fired hot-water boiler that was installed in 1949. So far, the boiler appears to run without issue. It has averaged 6-8 hours of running time per day during the winter months. My question is whether we should replace the boiler just because it is so...

We've had an ongoing issue that I think I've finally narrowed down a bit. Every once in a while, our Buderus GB142 reports water pressure that's too low, and won't come on. Thus, we come home to a cold house, or like this past weekend when we were away, I get an email from the thermostat that...

Hello All, I have a major problem with a boiler. Its a crown gas fired boiler. It was working fine for the last couple of months until a couple of days ago. I have three zones and have the thermostats turned all the way down. The boiler runs and runs and the circulation pump comes on. the...

Hello: New to forum. I have an older Weil-McClain hot water boiler, single zone, with old style radiators. I noticed some of the radiators were not getting warm so checked water pressure guage. Only about 5lbs of pressure. I added water (Bell and Gossett water reducing valve) and the PRV popped...

Hi All, Several years ago we extended our breezeway/foyer, almost doubling in size. Most of the added size extends past the foundation and is over an area that is exposed to the elements aside from some lattice. This area is supported up to building code etc, but it as no basement under it...

Hi All, I am planning on extending a baseboard forced hot water radiator in a foyer. I’m waiting for Spring in case I run into any issues, I don’t want to be without heat. I have some questions about that extension as well but I’ll save those for a later thread. First things first, I’m...

I am interested in replacing my aging boiler with one of the HTP UFT boilers. Based on two years of heating data run through Dana's formulas I have calculated a load of about 45k. I sanity checked this with a heat loss which came in at around 50k. Adding the ASHRAE 1.4x multiplier it gets me up...

It's getting chilly out, so I decided to run the heat and make sure it's all working properly before winter. We have a single zone Buderus GB142 boiler (natural gas), installed in 2006 or 2007. It has an outdoor reset unit that has been, at times, a bit flaky (turned out to be a loose control...

Hi folks, I would really love any help if you all can identify what's happening in my boiler. This video shows it all, with sound to help debug: https://www.youtube.com/watch?edit=vd&v=fY7rAYZu05g The boiler is on natural gas, I recently cleaned out the chamber, replaced the rear refractory...

This is a great resource and a great forum. I'm a couple weeks away from starting into a major renovation on our 1915 bungalow in St. Paul, MN. It's currently a 1-1/2 story and we have opted to top the house and add a full second story. Drawings and spec are done, and we have a contractor on...

I live in California and I want a radiator heating system in my home. It's an old spanish style home built in 1926. There was a furnace in the hallway as the only source of heat. And yes, California is very mild weather, but it can still get pretty cool in the winter mornings. I just want a...

Good Morning Everyone - I am looking for some advice We have a home in New England where we are looking to replace the entire heating system (along with a complete renovation). The previous setup was a mess with an oil fired boiler and a propane fired water heater and a wood fireplace venting...

I had a Lochinvar Knight WHN 85 gas modcon boiler installed in the fall of 2014. It's worked well, except for one foible: when starting up from cold, it will often "hoot". The hooting is at about 300Hz, and sounds like a foghorn or a French horn. It lasts for 2-20 seconds, easily audible...

We will be replacing our existing over sized boiler with a new higher efficiency boiler and want to reuse out existing chimney flue to vent the exhaust. Since the new boiler will produce lower exhaust temps, it was recommended that we use a 4" liner for the existing flue with 4" B-vent between...

First post - Hope you guys can help. I'm finishing up a large remodelling job on my house, and I'm having trouble installing a Honeywell 9320wifi5003 wifi thermostat on my hvac system. I have a Spacepack air handler/outside unit (condensor) for cooling and a condensing boiler/radiators with...

There are two issues I observe in my boiler heating system: (a) excessive pressure variation and (b) air trapped in the system. The distance from the lowest to highest point in the system is 8 feet, thus the minimum required pressure would be (8 / 2.31 + 3) ~= 6.5 psi. The operating pressure...

Hey all, first time poster here and relative newbie when it comes to boilers. I've replaced a zone valve head on my own before so not completely in the dark. My issue is with a taco circulator Pump that is making noise. Seems to only make the noise when the upstairs zone (zone 2) is not calling...