I'm in the process of building a food truck and am currently headchaching over the right hot water heater for the job. We are limited on space and power so are mostly looking at electric (120V), tankless, on-demand style heaters. The price seems right but we are nervous about how these will perform. Does any one have any experience using them or have any advice as to our best fit? For our inspection, we need to get up to 110F. Please let me know if you have any advice!