Questions tagged [air]
The air tag has no usage guidance.
55
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Air Conditioner causing rapid high CO2 levels - anyone know why, or how to fix?
wondering if anyone knows why when I turn my recently installed high-efficiency air conditioner on, CO2 levels rocket up in my house? (In just 4 hours they go from around 500ppm to 1200ppm, and that's ...
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2
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Is Complete Ductwork Required to Start the Condensor?
I'm in the middle of rebuilding my entire AC system. I've got one 14" return and two 8" supplies hooked up to the blower (on a 2 ton system). I plan to add much more, but for now I want to ...
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2
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Can I vent portable air conditioner into the garage?
I have a bonus space that is attached to the garage that we use as a home gym. I want to be able to run a portable air condition when working out. It will only run 2-3 hours a day and probably only ...
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2
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4
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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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2
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3
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Purchasing parts for my HVAC as a retail user
My Trane air handler recently stopped working and after the couple of visits arranged by the home warranty service company failed to resolve the issue, I managed to identify the control board parts ...
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2
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2
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When it's smokey out, why does more smoke get into the house in the mornings and evenings?
We've had thick smoke outside our home for several days now due to the fires on the west coast. We're doing what we can to filter the inside air and keep excess outside air from coming in (covered ...
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2
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1
answer
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What is the opening on the back of wood stove?
I have a woodstove in the living area, and I am not entirely sure what the opening on the back of the wood stove is. The woodstove has a name on the glass: Regency.
My fear is that this is where air ...
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2
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2
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Would an electric furnace prevent outside air from coming inside my house?
I have an old oil furnace that is vented to a chimney flue, with a damper.
I live in Maryland in a county where burning yard waste is legal. This can cause me to have an asthma attack when my furnace ...
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2
votes
0
answers
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Crawl Space Encapsulation: How to deal with the "Chamber of Secrets?"
I have a south Louisiana home built in the 1950's with a vented crawl space. In the 70's, a den was added with a slab on grade foundation. In this addition, the back porch was converted into a ...
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1
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1
answer
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Can I add an extension to an air intake for apartment central A/C? Is this a health or code violation?
The apartment I am living in has a nasty odor coming from underneath the furnace/ac and water heater. The air for the furnace is sucked up from this underneath section making all of the air that is ...
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2
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is it legal to have the air intake (for heater and ac) coming from outside in CA?
Our apt. building has the heater and ac air intake outside (collecting air from our driveway) in stead of coming from inside. is this legal?
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Circuit breaker tripping when heat kicks off [closed]
Why is my 70 amp circuit breaker trip periodically when my furnace blower motor kicks off?
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Why would a polarized plug not fit into a polarized extension cord?
I purchased a somewhat expensive name brand Beautyrest air mattress. Its electronic pump is at the foot of the bed, and its electrical cord is shorter than the length of the bed, making an extension ...
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vote
1
answer
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redirecting some air from outdoor A/C compressor into the attic to cool it down
I can't find any info on this question, and this might be a stupid idea... but anyway:
The temperature in the attic is ca. 130F, 3pm, outside temperature 90F. ( Florida, 17y/o house ) Can I direct/...
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2
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Is it correct for air to flow into home from under an addition?
I have seen multiple houses sitting on concrete basements or slabs where additions were added on to the house in the 1970s-80s and air flows directly from under the addition to inside the house. The ...
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1
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Evaporator Coil Cold, but Not Ice Cold
My temperature difference between my supplies and returns is only around 5 degrees F. I opened up my air handler to see if the evaporator coil was dirty, and it was clean -- but running the outside ...
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Noisy non-return valve - does this heating schematic make sense?
I am in the UK. I have an existing closed (pressurized) heating system with a boiler downstairs and the rest of the works + hot water tank in the cupboard upstairs.
Problem: when lots of radiators are ...
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1
answer
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Can I use two layers of window film to create a narrow, convection-reducing gap?
This is a follow-up to this question. The official answerer A.I. Breveleri writes:
The ideal separation distance between film and glass is 1/2 inch. Even
1 inch is too thick as it allows the trapped ...
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0
votes
3
answers
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Split air con : getting outside air inside
I have a split air con Samsung SH09APG. It's a typical air con machine, with an inside and outside unit.
I was thinking it would be really useful if it allowed the outside air to come inside the house....
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2
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Do I need an adapter to connect this sprayer to my pneumatic compressor?
I don’t know what these connectors are called but when I connect my compressor to the spray head via the male connector it doesn’t seem like a solid connection and leaks air. Is there something else I ...
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4
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Is DIYing a replacement of Electric Furnace and Air conditioner worth it?
My Air conditioner does not produce cold air, however heater part in Furnace works just fine. Air conditoner Unit is at least 20 years old and have no coolent left in the system. I am looking to ...
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Is there a window or portable AC system I can use with an hopper window without removing window?
I'm trying to see if it's possible to install a portable AC with hose in this dorm room hopper window without removing the window (See picture attached). I can't seem to find anything online nor a kit ...
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1
answer
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New 1500 watt (rated) dust extractor power consumption. Bad unit?
I asked this in the electronic section and been recommended to take it here instead. I've come to this site to ask some advice. I recently bought a 2 HP (1500 watt) workshop cyclone dust extractor, ...
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1
answer
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How can I insulate a window that's tight against the rough opening?
I had new vinyl triple pane windows installed several years ago. Long story short, the contractor placed the new windows directly on top of the 2x4 (home built in 1951) leaving very little to no space ...
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1
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Do wall ac/heater units bring in fresh air?
I live in an apartment with a combined wall AC/heater unit, like the type that you often find in hotels. Does this bring in fresh air when operating, or does it just recirculate the air inside the ...
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3
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AC blower unit stops working intermittent
Recently my central AC's blower unit stops working intermittently after its been on for a few days with no issues. When it stops working, I will wait a few hours and then turn on the thermostat to AC ...
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1
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98
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Repurpose old compressor
I recently came across someone who was throwing away an old craftsman air-tank and compressor. They claimed the compressor did now work anymore as it would never build pressure.
I had an old ...
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1
answer
41
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my air handler closet is heating up the room behind it in the summer when AC runs the most
My air handler closet gets hot in the summer. Likely because that’s when it runs the most or because it vents to attic and attic heat is coming in. Problem is that it heats up the room behind it. ...
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3
answers
141
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Is there a difference between combining two fans in parallel and buying one with twice as much CFM?
I want to build something like an "air purifier". I'm considering a box where I have a big filter and I send the air from one side to the other.
I want to maximize the air flow through the ...
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Preventing air conditioner from running when temp is below 65 degrees outside
Could l wire a thermostat outside and and set is to 68 degrees and use it as a switch to prevent the air conditioner condenser from running when below 68 degrees. And use in-line with the yellow wire.
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Dust buildup and vent airflow - Should my vents be completely open?
The room that I am in is particularly dusty compared to all the other rooms since I'm in it most of the time and it's very small with lots of stuff inside.
I do my best to dust every surface but it ...
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1
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What size duct for make-up air?
I have an industrial exhaust fan venting heat from the top of a stairwell. It is a CentriMaster ModelPRN PRN110 with specification sheet here: http://www.acmefan.com/InformationFiles/ModelInformation/...
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How do i reduce and split hvac duct from 8" round into two rooms
Hi i have small minisplit with 350 cf/m i attached a plenum with 8 inch ridgit round duct attached to it now i need to run it into a bulkhead where one register goes into a small room aprox 12x12 ...
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1
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5 hp air compressor wiring
5 hp 80 gal 208/230 volt air compressor, amps 18.6-17.5, LR amps -95, KW- 2.98
Located 80-100 feet from panel--looking for wire size and breaker size thanks John
on 230V circuit
hp listed on tank ...
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1
answer
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Air Flow using Vacuum and High Air Pressure Air
I am investigating container homes. Something about the modularity appeals to me.
Regardless, I am thinking about one of the challenges that they face is to get adequate air flow without cutting ...
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1
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Should I replace whole system or just leaky component? [closed]
The HVAC guy who screwed me (edit: i do believe he tried to find a leak the first visit, but the second visit he didn't seem to be bothered) on a refrigerant refill (see my other posts) is ...
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Is it ok to connect air conditioner from one room to another using duct and exhaust fan
I have two rooms both has the area of 100 sq.ft and together 200 sq.ft.
According to AC tonnage calculation , 1.5 TON AC is enough upto 90 to 250 sq.ft area.
Sine I have 1.5 Ton AC , I'm thinking to ...
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What's the reason for air pressure in the room?
My bed room has an attached bathroom aka restroom.
So whenever I close the bathroom door , my room door shuts because of the pressure or if door is closed and bolted then one of windows get open.
So ...
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Attic air sealing new construction
What is the best practice for attic air sealing when it's new construction?
In my jurisdiction I have to get my insulation HERS (California's new Home Energy Rating System) inspected before I can ...
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0
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My daughter room barely gets airflow. After looking in vent with camera the vent comes to a small point. Why would this be made like this?
Little airflow through vent. Can only get camera to a point and looks like a small hole. Is this normal for a vent, why would the vent be made this way.
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Whirlpool Dishwasher leaks from the air vent
My Whirlpool Dishwasher WDF520PADM7 (2019) has the a passive style air vent on the upper left corner of the door (passive means there is no solenoid or fan). Water leaks from air vent assembly through ...
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Outdoor Ac unit causes home cinema to hum
The design of my new home placed the outdoor ac unit of my ducted system right outside my home theatre.
I love my new house but this is really bothering me as it makes the home theatre feel like an ...
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0
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Geo thermal air conditioning by natural air circulation
I live in the Caribbean and during the hottest evenings the temperature is around 86 degrees. We use conventional air con in the bedroom set at 80 degrees. The air temperature in the ceiling is much ...
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Air handler fan relay keeps shorting out after using heat
Comfortmaker - FEM4X3000BL
I’ve had two fan relays go bad in the past month, each time after using heat. (This is in Florida, we only turn the heat on a few times a year.) Wiring diagram attached. Any ...
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Is it a good idea to blow hot air through drywall?
I have a small room with no windows and I want to cool it down. A friend of mine suggested me to get a portable AC, create a hole in the wall (drywall) and put the exhaust hose through the wall. This ...
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Should I move an HVAC vent to the ceiling or on the opposite interior wall?
The below picture shows the current position of the vent (the white area over the sink). The blue patch above the toilet is a small window.
The plan is to relocate the bath tub and position it along ...
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Help reroute cold air return
I am working on opening up space between my lobby (on the right side of the wall) and the dining room area (on the left side of the wall).
The section of the wall that is used as cold air return ducts ...
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How to pump gases? (not compress them, nor create vacuum, just pump) [closed]
I have a container that is not hermetically sealed. It is filled with a certain gas/vapor: gaseous water (steam). I want to pump the gas/vapor outside, to the atmosphere. I have 2 questions:
1- What ...
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Creating positive pressure to keep secondhand smoke from seeping into a studio apartment
I just moved into a 325sf senior apartment and now live in a gas chamber. The second-hand smoke from the upstairs neighbors seeps into the apartment 16 hours a day through gaps around the shoddily ...
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1
answer
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Basketball doesn't get pumped [closed]
I have a new basketball, I have owned it just several months.
When trying to inflate it with the pump, it feels like it gets inflated and deflated at the same time, so I either end up with less ...
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