Reddit reviews Manometer, RISEPRO Digital Air Pressure Meter and Differential Pressure Gauge HVAC Gas Pressure Tester
We found 2 Reddit comments about Manometer, RISEPRO Digital Air Pressure Meter and Differential Pressure Gauge HVAC Gas Pressure Tester. Here are the top ones, ranked by their Reddit score.
SMART DUAL INPUT – RISEPRO® manometer can easily measure the differential pressure with its dual input probes.RANGE & RESOLUTION – Measures +/- 2.000psi (0.001 resolution) with accuracy +/-0.3% in full scaleMAX PRESSURE – 10psi (Can resist up to 10psi but may not show readings when over 2psi)11 SELECTABLE MEASURE UNITS – InH2O, Psi, Mbar, kPa, inHg, mmHg, ozin2, FtH2O, cmH2O, KGCM2, BarBACKLIT, DATA HOLD, AUTO OFF – Tailor-made with all of these useful features for your work requirements!
I know many questions have been answered, but I want to provide some info that hopefully clarifies some of your questions.
From what you wrote, there may be some confusion in if the house is pressurized. You do not need to do a blower door test to find out if a house is pressurized. Pressurized just means a higher pressure than outside. You only need anything that can measure pressure between inside and out. A manometer. In a very, very simple manor, you could also just crack a window and see if air is moving out or in.
To get fresh air in the home, you can do it three main ways: exhaust-only, supply-only, balanced. Exhaust only would be like a bath fan on all the time. This would depressurize your house, which would pull air from all the nooks and crannies of the home from outside (pulling in as much air as is getting pulled out by the fan). Supply only would be like a fan that pulls air INTO the home to, maybe, the return of the HVAC system. It is ONLY supplying air to the home, which is pressurizing the home all the time if it is on all the time. This prevents any air from coming into the home from any other location. If you had a supply only system and put a good filter on it, then that is one way you could control smoke from coming in. Balanced ventilation means a fan pulling in and a fan pushing the same amount of air at the same time. That would be like an ERV. This is a good control method as well AND you could make it so that you pull in juuuust a bit more than you push out, so your house is then pressurized.
You want to reduce the possibility of leakage from outside (blower door will tell you how leaky the home is). That means two things: air seal the home and CONTROL where the ventilation is coming in. This means balanced or supply-only ventilation. THEN you HAVE to make sure that the air you are pulling in is filtered properly. A MERV chart shows that you want at least a MERV 13, but probably higher to start pulling particulates as small as smoke out of the incoming air stream.
No by-pass damper, since there is no humidifier.
When it runs after 33 error, I am getting consistently 0.12 now on either of the trunks (measured at take-off). Post filter -.11
I am using one of these:
https://smile.amazon.com/Manometer-RISEPRO-Digital-Pressure-Differential/dp/B01680C4C2/