Electrical Question - dumb one - but a good one

The wall receptacle is fine as is. Putting a 20 amp receptacle in the wall will change nothing current wise,but will give better grip on the prongs . Get a new chord that is 20 amp iec at the unit end. Only reto fit if your sure the cable is rated for it like Al said. Cheers

Whether a receptacle (of identical brand and grade) is 15A or 20A makes no difference in grip on the prongs. Both receptacle types are of same current carrying capacity and design internally, only the face is different, having the "T" shaped neutral slot.

Even dead-front GFCI's are just a regular GFCI receptacle with prongs on the inside, even though they (obviously) aren't being used.

Manufacturers don't waste money on tooling to produce one quality receptacle for 15A and another for 20A within the same grade. You get difference in grip only among grades and brands, not rating.

Gbart , in the home I had built the outlets in kitchens are all 20 amp by code . They do have a stiffer grip on the prongs in my experience. 20 amp outlets at least in my area and experience are a better grade than the standard 15 amp version. The ones I installed myself when finishing my basement were made by the same manufacturer as the 15 amp version in the rest of the home and they did provide a better grip. I am sust speaking from my experiences. I worked for 17 years winding transformers for Hammonds who at one time owned smith and stone who manufactured receptacles of all types and labelled with different company names so I have had first hand experience. Cheers

Gbart , just to clarify so you know why in my experience I made my statement. The company that Hammond owned that manufactered these receptacles in the 20 amp version regardless of grade were all manufactured identically . The residential versions and the hospital grades were actually the same except for the face colors of course as the hospital grade (orange) industrial (red) and the required ul/csa green triangle on the face. The audio grade having the differant metals and platings used which is subjective to manys opinions of the benefit of. I have not used the "audio grade " so I have no comment. I can only comment on the ones I used and know of and not all manufacturers. Some companies make only quality components others do make both higher and lesser qualities (tolerances) of the same product. Cheers.

You are talking about one manufacturer that has made some OEM receptacles, likely not Leviton, Pass & Seymour, Hubbell who make their own. I don't doubt you have experienced some differences in grip between some specific brand of receptacles. Unless you name a specific brand and grade, I can't comment further on that.

However, I stand by my original statement that 15A and 20A receptacles of the same brand and grade (by the well know manufacturers as those I named above) are identical in every way except for the face.

I've also tried most of the audio grade brands, and a couple of them have 15A receptacles that surpass other manufacturers' commercial and hospital grade 20A receptacles in terms of contact material thickness and grip. A good example is Furutech. Most manufacturers commercial/hospital, and audio grade contact material is 0.8mm, whereas the contact material in Furutech receptacles is 1.2mm.