Reliance ControlsCorporation WKPBN30 Portable Generator Through-The-Wall PWR Transfer Kit, No Size, EMW3790037

Very well designed for easy installation. Good instructions and YouTube videos on installation available. I installed mine through brick masonry with no problem. I started from a height of 19" above the interior floor, and double checked that would equate to a height higher than 24" on the outside. Thoroughly checked the wall area for AC, pipes, studs and other hazards to avoid. I started from the inside with the included paddle bit, carefully cutting through the insulation so it wouldn't wrap up on the bit. I verified clearance and no obstructions, and then carefully centered and leveled a 1/4" diameter by 12" long masonry bit from the inside out to create a pilot hole through the brick with a hammer drill. Then with a 1" diameter by 14" long masonry bit drilled from the outside, the holes lined up perfectly. (No masonry bits are included with the kit) I didn't use PVC cement; I used a liberal amount of silicone caulk sealant on the fittings and around the exterior hole. I also put a bit of silicone sealant inside the 1/2" pvc pipe at the exterior.I purchased a heavy duty 25', 10-gauge cord with TT-30P (male) plug (also known as a RV plug, for campers) to match the 30 amp plug on generator, and had to buy a 4-prong L14-30 (female) plug for the other cord end to fit with this kit's plug L14-30 (male) plug. It would have been nice if the kit came with the option of a male TT-30P plug in the housing.**BE VERY CAREFUL WIRING THE PLUG. Also note the top row of outlets covers 15 amps and the bottom row covers 15 amps for the 30 amp total capacity that it can handle - that's important as how you coordinate your plugging in of appliances, etc. **I bought this to use with a WEN 3800 generator after winter storm Uri in Texas, with 34+ hours with no power. With this simple setup it's worth the price you'd lose in food from your fridge/freezer, not to mention the other having power benefits.Overall I think it's a great little kit, although just a bit pricey.

Some would think the Reliance Controls WKPBN30 Through-The-Wall Kit was a bit expensive, as did I, but it is a great solution for bringing backup power into the house, and after installing it, I was happy I spent the money.We used the kit to set up a backup power source in the house to which we could easily connect extension cords without leaving a door or window open.The final installation looks clean and professional.The 30 amp 4 contact connector from the generator fit perfectly in the outside housing and was locked in place with a slight twist.The instructions are excellent and easy to follow for the first-time DIYer.The inside six outlet wall plug has light to indicate that both of the 120V banks are active.Wiring the plug was simple, and the connector and wires fit easily inside the housing cover.There are some installation tips you should be aware of:1) The outside wall in our installation was rough, uneven stucco, and we found that cutting the through tube flush with the wall, as the instructions stated, did not allow the wall unit to reach flush with the wall. We had to cut the tubing about 3/8' of an inch back off the wall line so the box would sit correctly against the wall.2) On the inside wall, we mounted the outlet onto drywall. The instructions state to make a 1/4" hole to accept the provided drywall anchors. This is incorrect!. The holes should be 3/16" in order for the anchors to grip; otherwise, they spin in the hole. After making the 1/4" holes and discovering the issue, we used different types of anchors and different screws to attach the outlet securely to the wall.Even with those installation miscues, I think this is a great solution and give it five stars.

This utility, once installed, makes generator use very convenient. However, there are some tricks to installation. First the conduit must be cut precisely in order to fit. The recommended length of 1/8" past the outside wall isn't quite right, because most of the conduit fitting needs to be inside the wall and might not be set back enough with the 1/8" overhang. I did not install the knockout washer into the power inlet box knockout hole because it doesn't allow the conduit fitting to protrude through the inlet box enough to thread it. In the online video Reliance provides, they don't install the knockout washer either, so I can only assume it's not essential. One final pitfall, if you have overlapping clapboard on your home and you install the exterior inlet box just below an overlap, you won't be able to install the box cover. So after install the box, I had to cut pieces of overlap in order to fit the box cover. Installation took me about 6 hours. Results are great but the job was hard.