I have a high efficiency (95%) furnace and the exhaust noise bothers my neighbors. I have had the contractor reroute the exhaust but this just moved the noise to the other side of my house. Is the any why I can muffle/silence the noise?

Not recommended by mfg. in many/most cases,, are you sure the correct size pcv plastic was used,again must be what mfg. specified in the installation manual,

Really, the noise from the draft induced exhuast is bothering the neihbors? I bet they really raise hell when you start you car, or talk outside. How loud is it. What do the installers say, is the sound normal, or is it louder than normal. This just sounds strange. I think your neighbors are just going to have to live with it.
Im curious, what brand of furnace do you have.
Only option I can think of is to find a way to vent the furnace up through the roof, this would be a bit of a job, but can be done. Depending on the furnace, you may have to increase the size of the vent.

Really, the noise from the draft induced exhuast is bothering the neihbors? I bet they really raise hell when you start you car, or talk outside. How loud is it. What do the installers say,, is the sound normal, or is it louder than normal. This just sounds strange. I think your neigbors are just going to have to live with it.
Im curious, what brand of furnace do you have.
Only option i can think of is to find a way to vent the furnace up through the roof, this would be a bit of a job, but can be done. Depending on the furnace, you may have to increase the size of the vent.

The sound is noticeable (not as quiet as the old convection furnaces) and due to the layout (kind of an echo chamber) and the time they spend outside thet complained not once but twice. The first time, the day I started it up! The furnace was vented to the side of my house (right next to theirs). I had it rerouted through the roof and they conplained after 2 months.

I now have the exhaust (4" dia abs) routed to the other side of the house and all is well except for the neighbors on the other side! They have not complained yet.

The furnace is a:

Rudd RGRC-10EZAJS 105,000 BTU 95% efficient condensing furnace with a fan exhaust.

The noise is only at the exhaust oppening and disappears when I cover it with my hand.

And yes the are more sensitive to noise than most neighbors might be.

Did you put a 90 degree elbo on it to force the sound down towards the ground.

Did you put a 90 degree elbo on it to force the sound down towards the ground.

The exhaust is now on my roof. It had been relocated from the side of the house where it was pointed up.

Now it is pointed toward my other neighbors house (sideways). The exhaust nois is very directional though (the first side of the house is quiet now). Maybe I should add a 90 degree elbo and point it at my roof.

The roofing in this area is spanish tile and as I said the exhaust is cool no more than 120 degrees F. Do you see any problems with pointing it at my roof?

Thanks

The exhaust is now on my roof. It had been relocated from the side of the house where it was pointed up.

Now it is pointed toward my other neighbors house (sideways). The exhaust nois is very directional though (the first side of the house is quiet now). Maybe I should add a 90 degree elbo and point it at my roof.

The roofing in this area is spanish tile and as I said the exhaust is cool no more than 120 degrees F. Do you see any problems with pointing it at my roof?

Thanks


With the tile all should be OK

Now that the vent is exiting the roof, putting two ninetys on to point it back down toward the roof would (I believe) send the noise back down. I think you can just leave the vent pipe sticking straight up (no 90s) and the noise should be less at ground level. However, make sure to check with installer or install manuall to make sure it can go straight up.

Im just curiouse about these sensative neighbors. Do you have an air-conditioner(central air). IF you do, and the condenser is located on the side of the house with the fussy neighbors, do they complain about the noise of the condernser running. Sounds to me like they should move to the country, of course the birds chirping might upset them, lol.

Hope all works out well for you, you have done more than most people would to try an be as neighborly as possible. Take care.

Actually if the draft inducer was replaced it will probably be quieter since that is where the noise is from to start with. Had a similar problem in the past and that fixed it.

I agree hvac1000. Normally draft induced exhaust is not loud enough to cause a complaint from homeowners or neighbors. If the draft inducer is making more noise than normal, time to replace it. I would think the installer that changed the location of the vent would have picked up on this if it was the case, but you never know.

From what I have seen or heard about some contractors/service people lately it is a wonder they pick up on anything. A friend of mine stopped to visit and just had to show me his new BACHARACH tester. He had to fire it up before reading the directions and was wondering why it would not register but just said sensor. Needless to say he forgot to plug in the sensors since they were still in the bag. Spends 2000.00+ on a tester setup and forgets to plug in the sensors? I plugged them and we put it to the test and it works just fine. That new toy never has to be sent in for calibration since you just replace the sensors when the tester says they are bad. Great toy if you know how to use it.

I would think the manufacturer would not want any elbows on the vent when vented vertically. Check the manual or with the contractor.

now that the vent is exiting the roof, putting two ninetys on to point it back down toward the roof would (i believe) send the noise back down. I think you can just leave the vent pipe sticking straight up (no 90s) and the noise should be less at ground level. However, make sure to check with installer or install manuall to make sure it can go straight up.

Im just curiouse about these sensative neighbors. Do you have an air-conditioner(central air). IF you do, and the condenser is located on the side of the house with the fussy neighbors, do they complain about the noise of the condernser running. Sounds to me like they should move to the country, of course the birds chirping might upset them,.lol.

Hope all works out well for you, you have done more than most people would to try an be as neighborly as possible. Take care.

Yes they do complain when I demonstrated the air conditioner noise (It is not summer yet). It is more even noticeable. However I believe it is due to the AC copper pressure lines. They are routed down the side of the house inside a sheet metal enclousure on the neighbors side of the house. The copper lines are NOT attached to any structure and vibrate when the AC is on. The vibratration is transmitted to the sheet metal and even though the contractor wraped and foamed the lines.
I have removed the sheet metal enclosure and I am building a wood insulateded enclousure around the lines and the condenser unit on the roof. Have not competed this as yet.

Can the copper lines be attached to the roof or side wall to help reduce the vibration and how?


TIA

I live in Toronto and am experiencing the same issue. My neighboors have installed a Hi Ef furnace and the noise from the exhasut pipe is quite annoying. It is an persistent droning sound and it is also dripping quite a lot of water (condensation) onto my property. The pipe is a 3" upvc, is there a damper that cam be installed?

Really, the noise from the draft induced exhuast is bothering the neihbors? I bet they really raise hell when you start you car, or talk outside. How loud is it. What do the installers say,, is the sound normal, or is it louder than normal. This just sounds strange. I think your neigbors are just going to have to live with it.
Im curious, what brand of furnace do you have.
Only option i can think of is to find a way to vent the furnace up through the roof, this would be a bit of a job, but can be done. Depending on the furnace, you may have to increase the size of the vent.

I don't know what sort of answer this is.. "Just have to live with it".
You should try living next to the neighbors with the noisy hi-efficiency furnace, as I do.

Repobox, notice towards the end of my little rant I did mention taking the vent up through the roof. This is your best solution(if the neighbors will do it), it will move the noise and condensation away from your property. I just personally haven't had any complaints from customers about the noise of there exhaust, but that doesn't mean they don't complain to others behind my back, lol. Adding a damper is not possible, because restricting the exhuast in any way will cause the furnace not to operate correctly. See if the neighbor is willing to have vent relocated. Hope they will work with you. Let us know how things turn out.

Repobox, notice towards the end of my little rant i did mention taking the vent up through the roof. This is your best solution(if the neighbors will do it), it will move the noise and condensation away from your property. I just personally havent had any complaints from customers about the noise of there exhaust, but that doesnt mean they dont complain to others behind my back, lol. Adding a damper is not possible, because restricting the exhuast in any way will cause the furnace not to operate correctly. See if the neighbor is willing to have vent relocated. Hope they will work with you. Let us know how things turn out.

Thanks, I will try your suggestion.