Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Could you by an adapter to us a 20 lb propane tank
Document: An excellent oven. Well insulated. Easy to start and use. Well worth the price. It will work with a 1 Lb propane cannister but it won't last long. We paid for the optional hose that allows us to connect the oven to a 20 Lb tank. We also bought a couple of 2-pack 9" x 13" aluminum casserole pans that fit perfectly on the two racks.The stove looked like a bonus for us so we tried to use them to make coffee.
Also on the oven itself it says to keep oven 10 feet away from propane cylinders so if you want an adapter to use a 20 lb cylinder for this oven, do not get the recommended Camp Chef's 5 foot Disposable Bottle Regulator Bulk Tank Hose Adapter HRDSP, but get the 10 foot longStansport Propane Appliance to Bulk Tank Hosefor only $24 bucks which is cheaper than the recommended 5 foot Camp Chef's HRDSP one aforementioned.
It would have been much more convenient since I suspect the overwhelming majority of users do not restrict themselves to the one-pound bottles (recognized by the manufacturer since the box has printed on it that a 20 lb tank lasts 50 hours and the 1 lb bottle lasts 7 hours, along with a picture of the correct adapter hose).Also, the indented hand-holds shown on the sides of the stove in the photo that is currently on Amazon's site are no longer on the stove as presently manufactured.
My husband and I live off the grid, and have slowly been developing our land to build a house. We have had an outdoor kitchen for the last couple of years - with no oven. We got this little oven over a year ago, and having been using is almost on a daily basis. It works great, and has never failed us. We use the little propane bottles, and they usually last us about 10 - 20 days, depending on what we cook.
Had it not been for the lack of quality presentation, I probably would have bumped my review to 4 stars.And don't forget that if you want to connect to a larger propane tank, you'll need an external hose that often costs $20-$25, but it works well with the 1lb canisters.
Basically, you can do a lot with this oven on 20# propane.Carrying, convenience:  Good. Like I said, I've used the oven for years. The indented handles are fine for a short carry (from storage shed to cabin patio.) The bottom edges are sharp -- and I do mean, they will cut your fingers, so be careful lifting from the bottom. I put a standard regulator on the oven so I could use the 20# tanks. Much more efficient.
Bought this oven for a camping trip and I love it! Would recommend to anyone who likes a little home cookin' in the wild! The only thing is that it needs to come with the adapter for a propane tank that fits a regular grill, instead of the little bottles used for lanterns and such!Other than that, I would highly recommend this to ANYONE!!!! !
I wish it came with a hose adapter to use it on a regular propane tank, but I understand that they try to keep the cost down for people that may not want to use it. If the thermometer and oven igniter worked, this would be a 5 star review.UPDATE:  I contacted the company about the thermometer problem and they immediately dispatched (at no cost to me) a "hang on the rack" thermometer. Now I have two.
Out of the box, the stove is equipped to run on standard 16oz propane canisters. For more extended or heavy use, it is easy to attach a bulk tank adapter, which makes it possible to use the stove with a full sized propane tank.I do not regret this purchase at all and recommend one of these to anyone who is looking to take their car camping to the next level of luxury or have a fantastic and reliable way to cook in an emergency.
The correct bulk tank hose adaptor made by Camp Chef is called "Disposable Bottle Regulator Bulk Tank Hose Adapter" (Camp Chef's item number is HRDSP) and the stove-end screws into the stove's regulator in place of the one-pound bottle. Of course there is no regulator on the bulk-propane-tank-end of the hose and that end just screws directly onto the bulk propane tank. As of this writing, Amazon does not sell this hose.
Answer: yes