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As stated earlier, the horizontal is a 10" rise over 5' so well better than the 1/4" per foot. Boiler is 105,000 BTU/hr input. I'm likely mixing terms inappropriately mixing flue, chimney, etc. The "chimney" is the same b-vent you see coming off the boiler. The b-vent from the boiler enters the...

It has been awhile and I'm sketchy on the details but when talking to shops that use their lifts a lot one of the interesting things that was suggested was to add an additive from ziegler that helps to make the slides work better and remove any chatter that might occur. Some of the people added...

Again, @danski0224 thanks for all the comments and thoughtfully suggestions. The ERV does not go into the attic but it does indeed tie into the duct work to push outside air in to the house and yes in a number of places house cavities are used for air return. None of the professionals that have...

The "horizontal run" is a 5' section that rises 10" before going into the cavity that has the chimney run . I don't know what is behind where it goes into the chimney but I believe it to all be 4" b-vent. In the early days of the radon system the backdrafting was so bad that it caused CO...

The radon mitigation system is a pipe that connects to the drain tile that is embedded in gravel under the concrete and has an active fan in the attic that draws air from within the drain tile and dumps outside above the roof. All penetrations into the floor and the sump basket have been sealed...

Before I start, thank you @danski0224 for all the comments and ideas. The smoke pen shows that airflow is coming into the house from the pipes and flowing toward the boiler even when it is not running. The boiler does have a mechanical damper that closes when the boiler is off and opens when...

I have 2 6" make up air supplies into the boiler room. The second 6" was added in conjunction with the radon mitigation. The house is very tight with a blower door test indicating a 2 (whatever that means). The boiler is 105,000 btu/hr input and it runs the indirect water heater so no...

Thanks @danski0224 , I did a bit of reading on the barometric damper before but wasn't sure if it would work given that my house has a bit of a negative pressure issue due to radon mitigation. After your post I read some more and apparently this type of damper can indeed be used for the type of...

My naturally aspirated boiler venting into a draft hood will sometimes have an issue creating a draft when the flue is cold (I.e. first thing in the morning) which leads to a bit of a back drafting until the flue warms up. I have been trying to get my HVAC guy out to offer ideas but in the...

Thanks @Mandres I'll check out the videos. I did find a $20 controller on Amazon that I thought was too good to be true. Unfortunately, the thing ran my motor for less than 30 seconds before it crapped out. I just looked on Amazon now and see the same thing now selling for $16 but when I search...

It was a major pain in the **** when I got rid of the treadmill that donated the motor I'm using and it also cost to get it recycled. Given the PIA of finding, picking it up, tearing apart, and then disposing of the leftovers acquiring yet another worthless treadmill for a questionable...

I'm trying to use an old treadmill motor to drive a apple crusher but I'm cheap! It would be nice if I had the controller from the treadmill machine but I do not and replacements look like they will be $100 and up. So being cheap I tried to use a $25 AC to DC speed control off Amazon but it was...

@rlitman my damper operates the same as yours. Two days ago after the boiler caused the damper to open I flipped the switch to keep it open all the time. So far no additional back drafting :) @Denwood thanks for the comments on HRV pressure. The comment about having a slight positive pressure...

New update (not dead yet). I sealed a large amount of the cactus pad and the radon guys moved one of the holes so now I have two pipes in different sections of the house. This allowed them to reduce the volume of the fans so it isn't as loud now and the radon levels now average around 1. It...

Check your codes and I'm sure that you will find that you are not allowed to have more than 120 at the tap. As mentioned above, add a temperature controlled valve at the hot water heater instead of on each fixture. Make sure to get one that monitors the temperature rather than just a simple...

Hunter Douglas with power view hub *****! You need the hub to integrate with other home automation (Google assistant, home assistant, etc.) and the darn hub has so many software issues it regularly goes offline. I also hate that HD requires you go through their people to buy and install. This is...

If you are going to build cabinets and you want something quick and easy I'd suggest checking out Aussie Dan's cabinet thread

The blower door test showed that my house is very tight with a reading of 2 (whatever that means). The good news is that after the enduring summer of pain last year of getting all my windows replaced they are actually installed well and don't leak a bit. The blower door test didn't find any real...

I feel similarly about a company having their own equipment. My company does but it is such an expensive piece of equipment it tends to be over committed with it usually being dedicated to testing houses that need certification before being sold. My company has LOTS of equipment but only one of...

Ugh.... putting an extension on a great stuff can worked really well - ONCE! I inserted about a 3' section into one wall and pulled it back slowly as I dispensed the foam and it worked great. I stuck the tube in another wall, pulled the trigger, and it started to flow briefly before the...