VVKB Engine Heater Titan-P1 with Built-in Water Pump 110v 1000w CE RoHS FCC

I received the product in good shape although it took a little longer than I expected. I un-boxed it and it was actually a pretty sturdy unit. The negatives of this unit are: (1) If you don't have a coolant flow diagram for your particular engine, you will spend a very long time getting it plumbed into your vehicle. (2) I believe the unit to be overpriced by about 50% considering they "do not" provide you with any detailed diagrams for installation. For the price, it would be to their benefit to do the research for the customer and provide an installation instructions for the vehicle it is being installed in. The unit does work well but is not as plug and play as they would lead you to believe. It will take some time and make take a few bucks to acquire the coolant flow diagram you will need to install it in your vehicle.

It heats right up but there is a flaw in the design. The pump turns off when the thermostat turns off the heater so there is minimal circulation of coolant. It really needs to have the pump run continually in order to circulate more coolant through the engine. Trying to figure out a way to do this. It's small and easy to install in the heater hose line. Instructions for installation are inconsistent with the picture online as far as placement goes. I ended up placing mine on the outflow side of the heater core. It cycles on and off about every 20 seconds. Not sure what to do about moving more coolant through the heater