Boiler heating extra zones

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by

Mike Emery

Last Updated March 05, 2016 01:09 AM

Background: This is a new house, with a boiler system I'm not familiar with. Instead of zone valves, each zone has its own pump (4 zones). There is a fifth pump on the other side of the boiler. Not 100% sure on the controller, but it's a Taco 4 zone.

Problem: Some zones are getting heat without calling for it. I could feel heat coming off the baseboards in the bedroom last night, and the room was extremely warm. The zone was indicating 72 at the thermostat, programmed to hold 66. Basement was 70, set to 66. Living room was 66, set to 66. Unsure on the 4th zone (didn't want to wake up the kiddo). Went down to boiler room, only the living room zone was calling for heat.

Where do I start with troubleshooting?

Edit: added diagram. Each zone is using a circulation pump with an internal check valve. Possibly the check is bad? How to test that?

Additional issues identified: air vent is leaking...

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Background: This is a new house, with a boiler system I'm not familiar with. Instead of zone valves, each zone has its own pump (4 zones). There is a fifth pump on the other side of the boiler. Not 100% sure on the controller, but it's a Taco 4 zone.

Problem: Some zones are getting heat without calling for it. I could feel heat coming off the baseboards in the bedroom last night, and the room was extremely warm. The zone was indicating 72 at the thermostat, programmed to hold 66. Basement was 70, set to 66. Living room was 66, set to 66. Unsure on the 4th zone (didn't want to wake up the kiddo). Went down to boiler room, only the living room zone was calling for heat.

Where do I start with troubleshooting?

Edit: added diagram. Each zone is using a circulation pump with an internal check valve. Possibly the check is bad? How to test that?

Additional issues identified: air vent is leaking and needs to be replaced. pressure tank reads 0 PSI and leaked water...

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Many older homes in the Minneapolis St. Paul Metro area date back to an earlier era. Some of these homes are heated with steam or hot water, using a boiler in the basement as a heat source and radiators or other systems in the living areas. Replacing steam or hot water heating is an update that many homeowners think about, especially when a new boiler is needed for the system. A modern, integrated forced-air heating and air conditioning system can increase the value of an older home and helps provide year-round comfort without the drawbacks of steam or hot water heat. Does this conversion make sense for your older home?

That depends on many factors. Such a replacement is a big job. There’s no question about that. Older homes that incorporate steam or hot water heating were designed with that system in mind. Replacing it with forced-air heating and cooling requires the installation of a ductwork system and heat registers, removal of radiators and other plumbing, and...

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Published: June 18, 2014 - by Dan Holohan

Categories: Steam, Hot Water

Q: Is it possible for me to use the condensate in a steam boiler to make a hot water zone?
A: Sure! Heating professionals have been doing this for years in areas such as New York City where there's still a bodacious amount of steam heat.

Q: Do I need a water-to-water heat exchanger to do this?
A: You could use a water-to-water heat exchanger or the boiler's tankless coil if you'd like, that will give you a first-class installation. However, if you follow a few simple piping rules, you can get the job done without the heat exchanger.

A: You'd set it up much the same way you would any hot water system. The water-to-water heat exchanger would become the "boiler" for your hot water zone.

Pressurize the new zone with an automatic feed valve and a properly sized compression tank. Wire the circulator to come on at the call of the room thermostat. Have it pump away from the...

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Solar Hot Water and Space Heating System With Integrated Boiler

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The Renewable Energy site for Do-It-Yourselfers

Norm's full description...

Overview

I acted as my own general contractor and subbed out the pieces to people with considerable experience in each. The overall design of the heat distribution system was done by Northeast Radiant Technologies of Gardiner, Maine. One facet of their business caters to DIYers. They also made suggestions on boiler specs that were passed on to George Phelps of Gilman Plumbing and Heating of Newport, Maine. George worked with Quincy Hydronic Technology of Portsmouth, New Hampshire. They are the distributors of Biasi boilers in New England. George's son Rob installed the boiler and all the related plumbing and controls. The solar portion of the system was designed and speced by Vaughan Woodruff of Yankee Solutions of Pittsfield, Maine. Vaughan worked with both both Gilman and NRT to ensure that...

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We Have the Great Heating Service You Need

You’ll have a difficult time locating a heating contractor who can offer a wider range of services than us. And you’ll have an even harder time finding contractors who have as many years of experience! We handle all stages of the life of a heating system.

It starts with new installation. It continues with regular maintenance so that a heater has the longest lifespan possible and works at high energy efficiency. Along the way, there may be some repair work, and we have technicians ready around the clock to get those repairs done fast and right. It ends when the heating system retires and our professionals replace it with a great new one.

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Although we live in a world where "do–it–yourself" has become such a popular motto that it has turned into an acronym, you must never go "DIY" when it comes to central heating for your home. Nor is it proper to have...

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Components

1.

1.Automatic Vent Damper

Supplied with all boilers, the vent closes when the boiler is not firing preventing heat loss and conserving energy.

2. Standard Draft Hood

Prevents down draft and exhaust flue gases through the chimney. Includes a quick connect Blocked Vent Safety Switch.

3. Circulator/Pump and Cast Iron Adapter

Included on “PS” models and supplied wired and mounted, or wired and loose if specified.

4. Long Life Stainless Steel Burners

Designed for quiet operation and maximum efficiency. Burner drawers slide out easily for inspection and service when required.

5. Combination Gas Control

Controls include manual valve, two automatic operators and pressure regulator to provide dual-seated safety shutoff.

6. Steel Fin-Tube Heat Exchanger

Our unique double pass design uses 1/2” fin spirally and continuously welded on 2” OD SA 178A industrial steel boiler tube to maximize...

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Planning to upgrade to a high performance gas or oil boiler for your home or business? The new high-efficiency condensing oil and gas boilers installed by Harris Heating & Plumbing are a step up in safety, comfort and energy savings.

What is a condensing boiler?

When fuel is burned in a conventional boiler, the hot gases that are produced pass through a heat exchanger and transfer to water increasing its temperature. High-efficiency condensing boilers, on the other hand, use the standard sensible heat (energy transferred to change temperature in conventional boilers) plus the latent (hidden) heat to enhance efficiency by 10-12%. How? They extract additional heat from the waste gases by condensing water vapour (one of the hot gases produced) to liquid water thus recovering its latent heat.

How will you benefit?

They deliver 90-96% thermal efficiency as compared to 70-80% in a traditional boiler because they reduce heat loss Easy to install Pay for...
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