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Excessively hot basement (1 Viewer)

Fat Nick said:
...I have insulation in my basement ceiling too.  We had them put in a double layer between the basement ceiling/ground floor joists.  I had it done more for SOUND insulation as I have a home theater down there than for temperature.  As previously noted - dehumidifier running a lot...lots of electronics...furnace down there too...not hot.

I do think what matttyl said is the reason though - it's the combination of the boiler/furnace thing and the insulation.  In my case, I don't have enough of a heat source as I don't have a boiler, and my furnace doesn't run in the summer.  I could see how if I had a heat source greater than my dehumidifier, It could build up.  
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is there a sound proof option that isn't insulation?  kind of dumb i know.   Can i put it in select areas?  Like just above my tv area?

I like that its cooler in my basement but the sound does travel a bit

 
belljr said:
is there a sound proof option that isn't insulation?  kind of dumb i know.   Can i put it in select areas?  Like just above my tv area?

I like that its cooler in my basement but the sound does travel a bit
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So most of the stuff Hawks64 posted are for eliminating sound reflection - i.e. sound deadening panels.  What I wanted/needed was more in-wall sound insulation to absorb the sound traveling between floors, not around the room.  Somewhat related, but not totally.  They DO Make sound deadening stuff specifically. I know Owens Corning makes some...It looks like regular insulation, just much much denser.  It's also like 5-10x the cost per square foot of regular insulation.  That's the main reason I didn't use it.  Certainly superior, but a double-layer of regular insulation helps a lot.  It's really just to prevent bass and some frequencies from resonating in the open airspace between the floor and causing vibration.  

I used regular insulation, and on some spots near the in-wall subwoofer I put rubberized tape (essentially Dynamat, but a lot cheaper) to just deaden that portion of the wall some more.

 
Fat Nick said:
So most of the stuff Hawks64 posted are for eliminating sound reflection - i.e. sound deadening panels.  What I wanted/needed was more in-wall sound insulation to absorb the sound traveling between floors, not around the room.  Somewhat related, but not totally.  They DO Make sound deadening stuff specifically. I know Owens Corning makes some...It looks like regular insulation, just much much denser.  It's also like 5-10x the cost per square foot of regular insulation.  That's the main reason I didn't use it.  Certainly superior, but a double-layer of regular insulation helps a lot.  It's really just to prevent bass and some frequencies from resonating in the open airspace between the floor and causing vibration.  

I used regular insulation, and on some spots near the in-wall subwoofer I put rubberized tape (essentially Dynamat, but a lot cheaper) to just deaden that portion of the wall some more.
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thanks.  Its mainly my subwoofer 

and i need ti to stop reaching my upstairs bedroom :)

 
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Initially pointing to the insulation as the culprit seemed counter-intuitive, because basements always seem colder.  But let's look at the facts...

1. Much hotter/more humid summer than usual.
2. No central air
3. Insulated ceiling.
4. Many heat-generating items in basement: furnace, boiler, freezer, dehumidifier, washer, dryer.

:shrug:  

 
shuke said:
Initially pointing to the insulation as the culprit seemed counter-intuitive, because basements always seem colder.  But let's look at the facts...

1. Much hotter/more humid summer than usual.
2. No central air
3. Insulated ceiling.
4. Many heat-generating items in basement: furnace, boiler, freezer, dehumidifier, washer, dryer.

:shrug:  
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He could pay for each of those appliances many times over by purchasing new if they are generating that much heat 

lets take it one by one. 

Freezer shouldn’t throw off much heat. Was it purchased within the last century? Does it say energy star? Same w washer and dryer. Dryer already confirmed to fully exhaust outside. 

Are we really back back on the furnace / boiler question? I thought we were clear he had a boiler only? To my eye that looks like a Burnham unit in the photo. Should be at least 85% efficient, and if it is a dual water heater unit should be higher (otherwise what’s the point). Other than the dryer, this is the only unit in the basement capable of throwing off serious heat. I agree with the other poster (GhostDude?) that if it were me I would find a day that the fam is mostly out of the house, turn that unit off, and let it sit idle for 24 hrs, see what happens to the temp. Reminder - turning the unit off will not suddenly make the 50 gallons of water in the water heater cold, just have the fam use hot water sparingly  

Final item - judging the merits of insulation in the ceiling: generally you don’t see if because basements are well insulated from the environment (underground, ground temp is fairly stable). A little communication thermally can be a good thing, raise the basement temp a bit in winter, let it breathe out in summer. Other than using it for other reasons (noise isolation) I don’t think you need it and it may be counter productive 

 
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WhatDoIKnow said:
I would think you would only want fans pulling the air out when it is so hot and humid outside.  If he's already running a dehumidifier, any air pulled in (which would be from ground-level with those windows) would be fighting the dehumidifier.  I understand wanting airflow, but that might be best for cooler/dryer times of year.  :shrug:  
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Correct.  I wouldn't do it when it's 95 degrees and 80% humidity.  It likely takes a few days for all that heat in the basement to build up to those levels.  If you happen to have an evening when the temperature drops into the low 70s or even 60s with somewhat average humidity, run the fans.  It wouldn't be an around the clock thing - as the dehumidifier likely is. 

 
i agree with shukehan and i will leave this to chiefs who is an hvac guy but i think the problem is that you are not circulating or exhanging the air down there and it is well insulated so any heat you make down there stays down there that is all i am sayin take that to the bank brohans 

 
wilked said:
He could pay for each of those appliances many times over by purchasing new if they are generating that much heat 

lets take it one by one. 

Freezer shouldn’t throw off much heat. Was it purchased within the last century? Does it say energy star? Same w washer and dryer. Dryer already confirmed to fully exhaust outside. 

Are we really back back on the furnace / boiler question? I thought we were clear he had a boiler only? To my eye that looks like a Burnham unit in the photo. Should be at least 85% efficient, and if it is a dual water heater unit should be higher (otherwise what’s the point). Other than the dryer, this is the only unit in the basement capable of throwing off serious heat. I agree with the other poster (GhostDude?) that if it were me I would find a day that the fam is mostly out of the house, turn that unit off, and let it sit idle for 24 hrs, see what happens to the temp. Reminder - turning the unit off will not suddenly make the 50 gallons of water in the water heater cold, just have the fam use hot water sparingly  

Final item - judging the merits of insulation in the ceiling: generally you don’t see if because basements are well insulated from the environment (underground, ground temp is fairly stable). A little communication thermally can be a good thing, raise the basement temp a bit in winter, let it breathe out in summer. Other than using it for other reasons (noise isolation) I don’t think you need it and it may be counter productive 
Click to expand...
Freezer is one year old. Yes, Energy Star unit. 

Dehumidifier is 2-3 years old. Also Energy Star unit. 

Washing machine is on the order of 30 years old. Dryer is about 2-3 years old. 

Basement is “down” to 78 degrees now. Temperatures here have been much cooler recently. 

 
Spike, I can give some real help on this tonight if interested.  Let's do a facetime, we can talk the whole thing through.  PM me a number, can call after kids are in bed

 
wilked said:
Spike, I can give some real help on this tonight if interested.  Let's do a facetime, we can talk the whole thing through.  PM me a number, can call after kids are in bed
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:bow:   any way you can broadcast this on Periscope?  Inquiring minds want to know.

 
hey bromigos did we ever get an answer to why this brochachos basement was so brohoto or what take that to the bank

 
can anyone who knows spike try to tell us what happened here i still would like to know take that to the bank bromigos 

 
well i hope it worked out for him and i would like to hear what it was and how it was remedied but hey that is just me talkin brohans take that to the bank

 
Galileo said:
Last visited: 3 hours ago.  He just lurks now?
Click to expand...
Think he is mostly in the Shark Pool. May want to ask the mods to cross-post this thread there for a week or so

 
The excessive heat was never an issue in the winter as the cellar’s heating zone temp was always set to 59 degrees. 

 
please stop posting now i already declared that i solved this riddle so we should probably just have the thread locked take that to the bank brohans 

 
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