[Ooper]

I'd rather not recommend a brand but if you Google "tankless water heaters" or "point of use water heaters" you'll find many to choose from. They start around $150 +/- on up. They come in gas and electric (both 110 vac and 220 vac). You need to determine your needs and what you can afford. Research user reviews (there are many sites on the internet) and take a trip over to Lowes or Home Depot.