My furnace is buderus with a becket burner, it is about 6 years old and has been serviced every year. I have been having a problem lately with it kicking on when the temp in the house is warmer than the termastate is set at and I know found it has water leaking from it. Can you tell me what might be the problem. It is forced hot water for heating.

The problem is if the boiler is leaking water the automatic fill valve is refilling the boiler jacket and cooling it down. The boiler is set to maintain its temperature in the jacket. When that drops the Becket burner will kick on to get the temp back up I'm the boiler.
This should nit be leaking ANY water it's a closed system. Here is the basic possibilities of a leak.
Boiler jackets seals are not sealed in between the jackets.
The cast or steal jacket has a hole in it and is leaking on the floor
The pressure relief valve is going bad and dripping water out of it and on the floor
The seals on the circulator has bad seals.
The hot water lines or the cold water lines is leaking at a joint.
That's about it.
Any leaking will cause the automatic water feed valve that's on the domestic water line hooked to boiler to open and add COLD water directly to the boiler and then it needs to re fire to bring up heat in the boiler so when you call for heat on the thermostat pre heated hot water is there on demand'
Fix leaks and this should solve the problem. If it doesn't then its another problem but the leak needs fixed first.


Signed 21 Boat

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You are constantly getting cold water into your furnace which will make it run when the furnace is leaking

Just to get our lingo right hear

A Furnace BLOWS air and uses ductwork It has NO water

A Boiler is a hot water system with water that is used to heat the house.

The only way a Furnace leaks water is when The A coil in the plenum condensates while air condition is on
The little drip line

21boat... just to get your lingo straight... "a furnace is a major appliance that is permanentlly installed to provide heat to an interior space through intermediary fluid movement, which may be AIR, STEAM, OR HOT WATER".

..."a furnace is a major appliance that is permanently installed to provide heat to an interior space through intermediary fluid movement, which may be AIR, STEAM, OR HOT WATER
Now we are getting to is it an engine or a motor in a car.
An engine/motor is a generic for describing energy and movement. What separates the two is one uses fossil fuel to create the energy. That's why we don't say I need an engine for my power window to work.
When I order a Furnace form one of my supply house it's a forced hot air. When I get a quote for a boiler its either water or steam.
We don't call it an Appliance or use the dictionary that way and say Hay I need an appliance to replace your HEAT PLANT So in MY world as an installer It's a furnace or a BOILER
A Becket burner can go in both. Becket is big in my town as wel as Weil McClain boilers Burhamn boiler are strong here and also MADE here. And I have been installing them for over 20 years now
If you go into the wholesales office at the one of my supply houses and say I need a furnace they will Tell you they don't sell Furnaces only boilers. The other supply house that Does sell furnaces will tell you they don't sell Boilers. So the too vague usage of the word furnace does not apply in my plumbing world Its to generic on definition.
I wasn't trying to bust on anybody hear My repost was to help confirm weather the questioner knew for sure if it was a boiler or a furnace If there is a humidifier in the plenum that could leak water too And again the Beckett Burner goes in both.
If a customer called me to come out and clean there furnace and I showed up without any brushes to clean their Appliance/furnace and I'm standing looking at a boiler with no brushes to clean the jacket in the boiler not to mention the many different size brushes to fit diff boiler jackets. As you see In My world of plumbing and heating we need to define what kind of heat plant it is Ergo furnace boiler
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My furnace is buderus with a becket burner, it is about 6 years old and has been serviced every year. I have been having a problem lately with it kicking on when the temp in the house is warmer than the termastate is set at and I know found it has water leaking from it. Can you tell me what might be the problem. It is forced hot water for heating.


Read

http://www.burts.com/warranties/buderus.pdf

21 Boat... I understand where you are coming from and I appreciate it. But the first comment made by DMD was "furnace is Buderus"... they only make hydronic equipment. Many homeowners don't know exactly what makes their heat work, let alone the source of it... With water and air and steam and electric... there is radiant, fan forced, hydronic and I'm sure more designations I've missed. At any rate DMD isn't the expert, you are. If you walk into a customers house and start correcting their "lingo" is that good business? At any rate...
DMD, all of 21boat's suggestions could be your problem... It's clear he's versed in boiler symptons and repair. I suggest you get a hvac tech who knows boilers to help you. Boilers are great and can last 50 years (had a Weil McClain that did) but they just like all equipment need to be serviced and maintained.

Hi Missouri Thank for under standing I wasn't busting Here in My neck of the woods I never heard of Buederus and I didn't bother to look it up for the simple reason that I just needed clarification of it hot air or water. Probably because of the manufacturing of boilers and heat pumps here are strong hear Again Didn't mean to offend. To tell you the truth They Love when I correct the lingo and it makes them feel better knowing the differences and gives them a little more feeling of control having the new knowledge. Today people love that and are in that grove Ergo Big box Stores knowing what's its called especially in plumbing. Many times the clarification of the lingo helps the answerers here especially in the plumbing end etc Thanks for the heads up! On Buederous! Appreciated

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