I am not sure where the walled in heater is that you are referring too. Attached would be a nice layout for your space. Ref= Refrigerator R=Range DW= Dishwasher C=rolling cart

Do you have the original plans to the home? I agree with cpartist to look into moving the gas and water line and moving down the garage door a few feet. close off the hidden back door to create a much larger ensuite. the wall with garage door, you will have a line of storage cabinets, fridge and stove and the window wall will have the sink. the wall with the sink you can definitely create a laundry area but you may have to give up some kitchen and bathroom space

I don't care for the fridge stuck perpendicular on the end of that run. You're creating a cave with unusable space in the corner, top and bottom. Top could be an appliance garage, but you're not really gaining anything. I'd put the pantry to the right, then the fridge. As for the bump-out, I think it's too deep to put a whole row of cabinets in front of the bump-out. If you are raising the window anyway, how do you feel about setting the sink and DW into the bay, then having a diagonal counter for prep space between the sink and range? The trash pull-out could be set on the diagonal, too, with voided space behind the cabinet faces. You might even have space for a narrow slot for cutting boards beside the range. The sink is off-center to the window, so the faucet is centered to help disguise the asymmetry. A couple of other issues: With no upper cabinets adjacent to the range hood, it should be 6" wider than the cooktop, to provide a wider capture area for steam and grease. Secondly, the passage between the island and stub wall should be at least 36". I redrew the island a few inches narrower, with the 5th seat on the short side--8' will be sufficient for 4 seats. The aisle between the island and perimeter should be a minimum of 42", so setting the sink run back into the bay will help with that. You have extra space in front of the fridge run, so that counter could be made extra-deep to match the depth of a standard fridge box (30"). NKBA guidelines New to Kitchens? Read me first. Discussions--Extra-deep counters Discussions--all drawer bases Discussions--dishes in drawers

Even with that change, you won't have enough room for seating at the island if you want to keep the cabinets on the refrigerator wall too. Do you need the island seating with the kitchen table right next to it? The easiest way would be to put cabinets or shelves where the knee space is instead. If you really want the island seating, you'll need to reduce the cabinets on the wall there to 12" or so, which will give you a 53" aisle--still very tight (and less than is recommended) for seating, with a not terribly useful depth for the pantry cabinets. It seems like a big cost when the kitchen table is right there.