By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Insulation slows it down. If it's not coming through the return ducts, it's coming from somewhere else. So try a light fans first.

If you want to take advantage of the lower outside temperatures, then you need to bring outside air in. I've often wondered if having a 'double-roof' would be worth it in places like Florida. So try add some dark color mulch or blankets wood or and dark color items into your green house that it can naturally absorbed and retain the heat from daytime heating and will slowly release this heat at night.

its pretty gay just use an electric heater. I'm already bundled under blankets and wearing socks around the house to keep warm. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. In US brands, I think one that I've seen the built in de-humidifcation feature a lot is Trane, but others may have it also. By that I mean having a second layer of sheathing separated from the home by a an inch or so with a ridge vent and soffit vents. Some systems have special modes for this, that somehow don't cool as much, but pull more humidity out of the air they handle (probably at a loss in efficiency, but I don't know for sure how this works), while others just run like normal, causing it to get colder than your target temp inside. But just because the insulation is there doesn't mean it's working the way it's supposed to: In attics, you can fix this problem by increasing the insulation R-value to around 40. But just because the insulation is there doesn't mean it's working the way it's supposed to: The thermostat is set to 70 degrees. Even if you have curtains or internal blinds, a lot of heat enters the house this way. To add insulation to an existing wall, we can drill a hole and blow it in. Any opening to the outside could cause a draught. It is possible that your AC is not only trying to get the inside temperature to the target,but also the humidity. The outside temperature has very little instantaneous effect on the inside temperature. Or, at least, it's supposed to be a comfortable temperature. You're inside your home and the heat is on. Sometimes you will need to replace your HVAC to solve comfort problems, but not always.

…how do you know it was installed properly? A better way of doing this is to use your fan so that you will mixed the air inside, thus slowing slightly the radiational cooling process of air near the ground of the green house, but not producing a small pressure drop inside your greenhouse with a heater. It might be 70 degrees in the hallway where your thermostat is, but that doesn't mean it's 70 degrees next to the window where you're trying to get comfortable. This largely conforms to my suspicions. The solar gain on the top roof should then cause air to flow between the two layers and help keep it away from the structure. When enough cold air infiltrates your home, the humidity might become uncomfortably low. This is a lost fight.I lived for years at the last floor, in a room with a single windows facing West. Too bad we can't harness it for something, eh? It's happens, but it's not super common either. Do you know keywords to search for to buy such a thermostat? Does it happen more in the morning at your house? Would fishing wire work for strings on an electric guitar? By performing a Manual J load calculation on your home, a home performance expert can determine how many cubic feet per minute (CFM) of air movement you need. The thermal mass inside the insulation envelope helps your house resist changes in temperature. I've seen thermostats with this function that are usually made to work with a specific air handler/furnace/AC unit, that has the aforementioned functionality. And if that is not warm enough, I would use the fan and use a few light bulbs. Can a creature under the effect of a Discord Symbol perform verbal spell components? It's one of those HUGE A/C's embedded in the living room wall. I looked up this strange BTU unit and it doesn't make sense here. In many cases, heating and air equipment isn't to blame. I f you have storage heaters they only turn on at 11 pm at off at 7am. Think dry skin, chapped lips, and static electricity. In addition to Machavity's answer, I'd also like to comment on solar warming.

If I put a fan in the window to circulate the air, which position will cool off the house faster, blowing the hot air outward, or blowing the cool air inward?

You can't.

I quoted the exact wording I was responding to. If in AUTO it could be starting the furnace if temperature goes under the setpoint then kicking in the AC when it goes over.

I have gas heat (that I have yet to use since I've just moved in) and I'm not keen on asking my landlord about this since I feel like I've been having him fix all the "little" things that needed fixing when I moved in last month. Hope this helps. Best type of fan for sucking air through a small hole? "it evaporates inside, collecting heat due to the latent heat of vapourization, and compresses inside, giving off this heat" - You have 'inside' twice. If the sun is out its very conceivable that it would warm outside before it gets to you inside. It's hot in my house and cold outside. I would also like to add that if air escape freely between the roof and the walls, the heater will have little use because the heat would rise quickly upwards and escape into the night air. Sure, every square foot of your house is receiving a ton of heat from the sun — so is every. 1 decade ago. By the time it could see the difference, the outside weather is heating up. Things that are black in color or at least dark will absorb more solar energy at night. i.e. It was hot inside and quite pleasant, even cold outdoors. A difference of two to three degrees between stories is normal. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The best way to mitigate this is with external blinds or shutters. The same issue exists during summer, only in reverse.

There's a lot of reasons your house will get warmer than the outside temp, but this is the single largest one. You don't want to turn it up because your energy bill is already high. This is especially true if you live in a brick dwelling as bricks do not get warm on the inside very fast. I've had this experience in multiple houses, so I presume it's not just caused by some sort of one-off issue with an AC or thermostat. Variable speed systems and zoning go hand in hand because your the equipment matches the heating or cooling load in each zone.

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Zoning makes a lot more sense when you use a variable speed outdoor unit and variable speed blower. Where's the negative pressure coming from? I've noticed that even when it is cooler outside than in (say the AC is set to 80°F (27°C) and the weather is 76-78°F (24–26°C) outside), my AC still runs periodically throughout the day. This heat transfer is mitigated by the roof insulation, but not eliminated. Why is my house so HOT when it's COOL outside? This is a closed system, contained almost entirely in sealed copper pipe.

The day I installed a $14 fan in the window, mounted as described above, everything changed. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. A Building Performance Institute-trained specialist (yep, just like PV) can help you figure out what's going on. What's the solution to all of this? When you do replace your system, upgrading to variable speed gives you a great opportunity to add a zone. Why would it remain so stiffling hot when we have all the windows open? Energy Recovery Ventilator (ERV) Services, COVID-19: Learn How We're Helping to Keep You Safe. As a simple thought experiment, we could remove all insulation from the house, and then your internal temperature would be a better match to the outside, as the purpose of insulation is to significantly reduce heat transfer through the walls and roof. Your body will force you to open a door or something because it will become unbearably hot within minutes. When coming from the hot passage and getting into the room I had the sensation that I was outdoors. That's the heating power of an oven. That means its high heat is still trying to push through the insulation even after the sun has gone down. Which magic item of very rare or lower rarity is most useful to protect a group of ordinary soldiers? For some people, 70 degrees just isn't warm enough.

But you're cold. In many homes, it always feels too hot upstairs. The question pretty much says it all. @brhans lol, yes, indeed - I am well aware of how an AC works.

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