After 110+ hours of research & testing, we’re comfortable recommending the Rinnai V65IN as the best overall tankless gas water. It was rated as one of our highest quality units while also being significantly cheaper than the others in that tier (by up to $1,000). We maintain these recommendations even after accounting for newer models of other brands that have been released in the second half of 2019. Read further for our findings.


Note: see our reviews for propane models here and electric models here.