The Bible has the answers.
Exodus 20:8-11 Remember the sabbath day, to keep it holy. Six days shalt thou labour, and do all thy work: But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates: For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the Lord blessed the sabbath day, and hallowed it.
- Remember
 
- Keep it holy
 
- Work six days
 
- Rest the seventh day
 
Nehemiah 10:31 And if the people of the land bring ware or any victuals on the sabbath day to sell, that we would not buy it of them on the sabbath, or on the holy day: and that we would leave the seventh year, and the exaction of every debt.
Nehemiah 13:19 And it came to pass, that when the gates of Jerusalem began to be dark before the sabbath, I commanded that the gates should be shut, and charged that they should not be opened till after the sabbath: and some of my servants set I at the gates, that there should no burden be brought in on the sabbath day.
Isaiah 58:13-14 If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the Lord, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: Then shalt thou delight thyself in the Lord; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of the Lord hath spoken it.
- Do not travel
 
- Do not do your own ways
 
- Do not find your own pleasure
 
- Do not speak your own words
 
Conclusion:  The answer is no on all points, because you're doing your own ways, buying/selling, finding your own pleasure or doing work. If you need a fire for heat then make a fire.  If you're doing it for the pleasure of it, I would refrain from it on the Sabbath.  If you shouldn't do your own ways/pleasure on the Sabbath or speak your own words, then what is it you should do and speak?  What pleases God, what glorifies Him.  "Remember to keep it holy."  Also: 
Galatians 6:7 Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap.