I am researching this topic myself. I realize this is months after your question. But insinkerator instant hot has a faucet with instant hot and cold, and it can be filtered or not. There are 2 handles on 1 faucet. My plumber recommended this brand. I have no financial ties or personal experience with the unit.

I just had to post here...OMG...the lady that wrote Laminate and luxurious in the same sentence.."NO". I hope I never have to meet someone like you in my lifetime. What a bunch of snobby, snarky..people! I am sorry..I think you can have a beautiful, luxurious kitchen without paying for granite, quartz, soapstone...etc. My goodness. I am building a house now and get to hear from our subs about all of the snooty women that they have to deal with...literally walking out of a house because the closets aren't big enough... What kind of country have we become? I say..if you want to buy high end appliances...beautiful cabinets..and put it all in a laminate kitchen. I think it can be stunning! Don't listen to all of these snooty fruities.....do what YOU want..and the people that matter...won't walk into your kitchen and take a mental note of your laminate..I would think it was beautiful! And for those of you who think that I must be some low life...my husband is a doctor! There....rant over! :-)

I think pot fillers are the silliest things ever . I don’t mind carrying a pot of cold water to my stove but when the powers that be come up with a way of dumping the boiling water to drain whatever on the stove give me a call. They rarely even use these in restaurants where they have pots probably 3x the size of yours. I like thehot water dispensers but honestly a kettle takes no time to boil and I love my filtered water dispenser.

Your builder is handing you a lot of BS there. These units are never considered a “necessary” luxury. Do you have the Sub Zero refrigerator? Pro style range? In some locations, those would be considered necessary at a certain level of build. A hot water dispenser? Ah, nope. Having had had one prior, it didn’t make it to the next kitchen. When you find yourself making excuses to use it, and those excuses are few and far between? Plus, to make tea, you want fresh oxygenated water heated to just shy of the boiling point for the best flavor. A freshly filled electric kettle is as rapid as happens for a pot of tea. For a cup, the microwave is the quick solution. Now, I collect tea pots, and have a whole cupboard of different teas, so someone who isn’t as fussy about it could be perfectly fine with an instant hot. I put that instant hot money into a whole house tankless water heater.