I almost never write reviews. However, I definitely wanted to come on here and sing the praises of this company and its stellar installation tech. When the company realized I was a foreigner, they changed all their correspondence with me to English. Due to my work schedule, I requested a specific installation time, which was immediately accommodated.
When the company realized that the condensing boiler I bought would not work for my old villa-style apartment, they contacted me and issued a refund for the difference of the regular boiler they had to install instead. (However, I did a lot of research and, if you can, this condensing boiler is great.) My previous boiler had frozen and the pipes burst. This was not easy installation. However, the tech went right to work, no grumbling. The finished product looks fantastic.
Moreover, the tech went above and beyond when he called the gas company for me to inform them that a new boiler had been installed and ask that the gas be turned back on. It's a nightmare, even for Koreans, to contact the gas company. With his help, by the time he left, I had hot water, heat, and a soundly installed boiler.
Highly recommend.