I have a project with a suspended make-up air unit. The gas connection is steel-piped. The manufacturer doesn't show flex connection, but they also cover curb-mounted etc.
A mechanic pointed out the unit will vibrate and may sway a bit and requested there to be a flex connection. Is this...
I'm determining hazard categories. There are some rooms that store combustible liquids. For example gasoline in plastic cans. There are others, but let's start with gasoline for now. Gasoline is a Class 1B liquid and I assume I can find out for the other liquids what they are. there may be...
I have a diesel truck vehicle garage and we are adding ducts over 4' wide. So I need to hire a contractor to add sprinklers under those ducts. I've been researching IBC and NFPA 13. I need to prepare bid documents for a sprinkler contractor. They will perform detailed design. But I need to show...
I have experience with Trace 700 and we had licenses for Trace3D. Before we renew our T3D license I was wondering if we should switch. We had some changes (only myself using the licenses we have). Our projects also only are small remodel projects, and we don't need the energy simulation part...
Is there a good source for conservative rule of thumb of weight of duct for varying sizes that includes:
- typical reinforcement
- option for insulation
- large fittings
I found this for spiral duct and this for some rectangular. it isn't complete and also may not include reinforcements and...
I'm in southern Wisconsin. We have a wide variety of direct-fired make-up air units for garages. Many of them have the issue that snow gets sucked in. that clogs up the filters, collapses them and then the MUA basically is filter-less. Sometimes the unit also shuts off due to lack of airflow (if...
