Questions tagged [central-heating]
For questions regarding a central heating system for the home. The system consists of a furnace or boiler and a method to distribute the heat throughout the home.
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Replacing Honeywell Thermostat (UK)
Hiiii,
I'm in the UK and trying to replace an old battered thermostat. I have a Honeywell ST6100A and I'm looking to update to a Honeywell ST9400C. I somewhat naively thought that because it was the ...
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How do I add central AC to my existing central heat system?
We currently have central heating. The unit is in the attic. The duct work is also in the attic.
How would I go about adding central AC to my existing setup? How would I go about doing this my self?...
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From heat load to CFM and where does 400/ton come from?
Based on this answer I have finally calculated my heating load of the total house as well as the distribution for individual ducts (rooms). Note that the formula for the heat loads was:
BTH/h = ∆T * ...
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Condensate pump making loud noise
Attached to my furnace, there is a Beckett CB151UL condense pump. After every cycle of the furnace (either heat or cold) the pump, removes water from itself. It has started doing a loud whining/...
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How to bleed central heating in a bungalow with pipework going into the loft?
I am planning to change the radiator in the bathroom for a heated towel rail, but before I do, I want to be sure of the air bleeding procedure as I am only used to central heating in 2 storey homes.
...
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Hole in HVAC furnace under filter normal?
I looked under the HVAC furnace today and noticed a hole near the filter installation. It seems like it should have been sealed up because air can be taken in bypassing the filter. Is this typical and ...
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HVAC unit upgraded, contractor cut a new return in the oddest spot
My old HVAC system suffered damage due to a lightning strike. I called up a local service co. and they sold me on a Trane split-system that was slightly oversized compared to what we had. The new ...
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How can I identify my electric furnace?
I have a woodchuck wood and coal furnace which someone added an electric heater on top of. The issue is I can't identify the electric heater, and it's in need of some servicing. Anyone recognize ...
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Boosting the output of a central heating radiator
The indoor temperature is hovering around 20C on a regular day, I'd like to kick it up to 24C and not have to use electric radiators to supplement the heating.
In this apartment there are old soviet ...
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Outside unit won’t work when inside blower fan spins correct way only when it is going wrong direction
I have a universal motor on my inside electrical unit. It runs but doesn’t have much air flow (like can barely feel anything even from the closest vent) so I swapped the direction wires and it gave me ...
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Heat Pump only heating for a few mins
I have a heatpump that will only run for a few mins before shutting off, inside blower runs nonstop. Cycles on again in about 45-60mins.(vent blows out warm air the first few mins then room temp air ...
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What features or terminology do I need to look for in selecting a suitable climate control solution
Background:
We have a heat pump driven central heating system with four zones. Currently, the system operates as follows:
The heatpump heats a deposit of water
Water pumps, 4 in total, connected to ...
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diesel powered heating - identification and advice request
I bought a house and the owner is a few steps removed from the last user of the house which leaves me at a loss as to who I even need to speak to about the machines and systems.
My hope is that I can ...
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Why does bleeding radiators save energy?
I wanted to bleed my radiators by myself for the first time and I was wondering what is the reason that bleeding radiators saves energy?
Most of the guides on bleeding radiators mention that this is ...
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Does it require separate condensing units to allow for different rooms to remote control HVAC temperature?
If I want to have a system where one bedroom is blowing hot and another is blowing cold air through remote controlled internal units, do I need multiple outdoor units and ducts?
Imagine you had a ...
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Is my water heater tank system normal?
I bought a heating system a year ago for my house.
It is a water heater tank. The hot water inside is heated
when the price of electricity is cheaper during the night and
two hours in the middle of ...
user158525
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circulation implications of removing a hallway header
Sorry for the grainy pics but should be sufficient.
The header above the entry to the hallway from the living room is non-bearing and I'd like to remove it. Question about its usefulness tho, and I'm ...
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Heat pump not blowing warm air when on heat - puzzling behavior
Config:
Ecobee thermostat
Lennox setup (furnace, heat pump, indoor coils)
Installed for ~6-7 months now
Problem:
Setting the Ecobee to Heat for 66F (not aux - just using the heat pump) turns on the ...
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One radiator is not getting hot (water doesn't seem to flow through it)
Central heating system is Pressurised system with Combi-boiler. My fix attempts so far:
Bleeding air out of the one radiator (with a bleed key). Immediately bled water implying no problem.
Checked ...
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How do I switch off the water flow of the central heating?
I have a pressurised central heating system. I am changing the radiator valve by freezing a section of the pipe. I was wondering if I have to switch off the flow of water of the central heating. If ...
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Change leaking radiator valve without draining
Hi I have a pressurised heating system. I need to change a radiator valve. Is it possible without draining the central heating. I have attached pictures of my pipe work. I am not familiar with ...
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3
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HVAC air filter replacement interval in hours?
My condo has a central heat pump AC/heater system that takes a 20x30x1 air filter. My area is a very mild climate and the HVAC system rarely gets run.
Checking my usage data over the past 12 months, ...
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Only half of my apartment electric radiators come on
I hope I am in the right to place to ask for help.
I am in the UK, have a small apartment with 4 radiators. They look like they are electric (no pipes running to them). This is a relatively new build ...
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Can you get water in a domestic natural gas supply and how would you test this?
We have a mysterious water ingress into our gas-fired boiler. We eliminated rain as the source so the only two options seem to be the condensate pipe backing up, or ingress from the gas supply line ...
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Does/can a modern indirect tanked hot water system draw heat on-demand to keep itself full of hot water?
In my previous experience with old tanked systems they simply ran on a timer so if you used all the hot water you had to manually boost it to get some more.
Using modern boilers and unvented hot water ...
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Is it possible for a gas fired boiler to consume more energy when heating intermitently versus having heating at all times?
I have an argument with my dad regarding energy consumption of a gas-fired wall radiator home central heating system. Their current setup involves no thermostat and the boiler deciding when to fire ...
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Can a combi boiler be damaged to the point of ruin by 'sludge' in the water?
I have a Baxi combi boiler and over the last 5 years it has had more problems than I can remember. We've had flow diverter valve failures about once a year, replaced both the hot water and main heat ...
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Sound from gas fired heater, sounds like rotary equipment
Video
I am not very familiar with the system, it's my mom's and my dad used to clean it out and test it every year. The noise doesn't bother us too much in the house, but I am more concerned with a ...
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How can we be more energy-efficient in heating our water? [closed]
We live in a very large, old house (in the UK) with 8 bedrooms, heated by an Ideal Instinct Heat 60 boiler (about six years old) supplying 32 radiators and a 295-litre (65 gallon) water cylinder. With ...
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Prevent steam pipe vent from leaving stain on the ceiling?
The object attached to the pipe in these photos seems to be a vent (such as described in Hissing vent on a steam heating pipe).
It hisses a lot, and you can see on the ceiling above a brown stain has ...
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Procedure to pressure test a boiler for cracks?
What is the procedure to pressure test a house heater boiler, and the rest of the system? My plan is to remove any broken radiators and put in place a temporary PEX line between the inlet/outlet so ...
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Could a damaged zone valve cause hot water to be always on?
I have a gas boiler (Ferroli OPTIMAX HE PLUS 25S) which has separate hot water and central heating control, connected to a timer (programmer - Sauter R27-HW).
The problem is, the water is always ...
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Can I break the furnace cold air return to pull hot air from a wood stove?
I've got a high efficiency natural gas furnace, and a wood stove in the same room. I get wood for free, so I'd like to use it to supplement heating with natural gas. The problem is a severe lack of ...
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Can I use a floor register/diffuser in a toe-kick?
We want to install 2"x14" heat registers into the toe-kick area under our kitchen cabinets. We want the type where we can control the output, but only find them in floor registers. Can we ...
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Electric Wall Thermostat with Remote Option
I have a an apartment from 1980s, so the thermostats are quite old.
One of them is Marley MD26 Qmark Electric Line Voltage Wall Thermostat x 3.
Plus 2x thermostats that built into the heaters ...
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How to seal refrigerant lines as they enter a house
I'm reinstalling the pipe insulation that runs from my central air conditioner condenser and I noticed there is no sealant as it enters the house.
I'm thinking foam wouldn't be great because the ...
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Trane BLU068-A1 Furnace not heating
I have a Trane BLU068-A1 furnace that will not "heat" (the fan will run) on its own. I "can" get the furnace to heat by using a long bbq lighter and lighting the pilot light ...
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Did I wire this furnace correctly?
I'm planning on connecting a nest thermostat in the next few days once my wifi is hooked up. In the meantime, I found an unused blue wire at the furnace and hooked it up to the C. My current ...
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Viessmann Vitodens 333-F set Temperature is stuck at 5 °C
My Viessmann Vitodens 333-F does not start the gas burner automatically.
Here is what I checked so far after logging in with viservice for the service menu and viexpert for the parameter Level 2 menu.
...
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Why is there shimmery white dust coming from my floor vents?
There is a white dust settling around all of my downstairs floor vents. It’s got a shimmer to it. I haven’t noticed it upstairs coming from the ceiling vents.
We had all new HVAC done a year ago when ...
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Why does the blower on my furnace run after the burner turns off?
I have an older Trane furnace. I have had HVAC people out here, but they are not listening to me when I describe what it does, so I was hoping to get some public input on this issue.
The house will ...
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Furnce shutting off frequently. Have to blow air into exhaust vent to turn on. Why is that?
I have high efficiency natural gas furnace. In the picture you see intake and exhaust vents on the outside of the house. Specially in colder days temperature reaches below target temperature, ...
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Why does water in a radiator not flow directly from inlet to outlet without passing through the upper part?
To an answer to How does water travel through a modern column radiator a commenter asked
Does this mean that you could completely open the exit valve, but half-open the input valve, and the water ...
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How to configure Honeywell combine W2/AUX/E terminal for Emergency heat?
I have a Honeywell RTH9585WF1012 to control my forced air furnace system which has:
Cool: 1-stage heat pump
Heat: 1-stage heat pump (same) + Expensive
emergency gaz heat from furnace.
Older ...
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How can I protect a frozen heat pump in cold weather while waiting for service?
Yesterday I noticed that my Carrier heat pump was struggling to keep up with my thermostat settings inside the house. It was around 35°F (2°C) outside, I had the thermostat set at 72°F (22°C), but the ...
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HVAC - noisy preheat
When the heat comes on I hear a noticeably loud whirring sound in the beginning. It only lasts for a couple minutes and then quiets down while the fan continues to blow heat throughout the home. I ...
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How to get good HVAC quotes?
My natural gas furnace and air conditioner are 20 years old. I plan to gather quotes to replace them both. What do I need to do so that I get good quotes?
I've heard HVAC contractors talk in an online ...
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Inducer motor turns off immediately after the pressure switch closes
My furnace is not working properly (ICM2805A control board, or Nordyne 624631A). When I turn it on, the inducer motor will start spinning and shut down immediately, the board will reset, and try again ...
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Electrical panel requirements for in-floor heating?
I have the unenviable task of replacing a floor (or three) in my home in the coming weeks/months. We are considering a mix of tile and solid hardwood.
It appears that it is possible to retrofit in-...
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What modifications needed in order to use used cooking oil for heating instead of diesel?
In Greece the heating oil went up to 1.20 Euros. Meaning that is WAY too expensive to burn. Therefore, I look for alternatives and the used olive/vegetable oil from local souvlaki/gyro store seems ...
