I’m not sure if this or something similar might work on your 16. On our 22 the Wallas 1300 is mounted in the otherwise wasted space on the outboard side of the front port seat cushion. I added a partition in the box under the seat that it is mounted to which is easily removed for service. The 2 1/2 gal tank, (not pictured) is mounted under the seat. I also modified the seat width a few inches to accommodate the Wallas. I have a remote switch in the Vberth so it can be turned on before getting out of bed in the morning. The warm air blows out under the dinette table so it’s nice and toasty for morning coffee. Your 16 is a beauty. Ken