Heather holds a Bachelor of Religious Education degree from Briercrest Bible College in Saskatchewan, a Bachelor of Arts degree in Religion from Rocky Mountain College, and a Graduate Certificate of Christian Studies from Regent College in Vancouver, British Columbia. A shipper/receiver and audio Editor by profession, he is a member and performer in the Canadian Badlands Passion Play Society and a member of the Creation Science Association of Alberta. Heather previously hosted the radio program "Gospel Road" on CHRB in High River. He has lived in the electoral district Calgary Southwest since 1963. He is a Director with the william Aberhart Historical Foundation started by former Alberta Social Credit Speaker of the House, Arthur J. Dixon.

Heather is best known as an anti-abortion Activist. He was briefly detained in 1985 for throwing ketchup on abortion Activist Henry Morgentaler, upon the latter's arrival in Calgary on a fundraising tour. He later protested against funding for the Calgary Birth Control Association in 1988, on the grounds that the organization provided abortion counselling. A few months after the Supreme Court of Canada struck down the nation's abortion law, he was quoted as saying, "a woman's womb is the most dangerous place to live in Canada". During a debate over a Calgary abortion clinic in 1991, he described Morgentaler as "a mass murderer who has murdered thousands of unborn babies".

The 1989 municipal results are taken from the Calgary Herald of 17 October 1989, with 38 of 44 polls reporting. The 1992 municipal results are taken from the Calgary Herald of 20 October 1992, with 30 of 50 polls reporting. The 2017 municipal results are taken from the Global News of 17 October 2017, with 266 of 266 polls reporting.

Heather is a member of Cedars of Lebanon Reforestation (CoL), a group which believes that the growth of cedars in Lebanon and Israel will signal the return of the Christian Messiah. He spoke in defense of fellow CoL member Bruce Balfour in 2003, upon the latter's arrest by Lebanese authorities on charges of spying for Israel. The charges were not proven, and Balfour was released.

One of his campaign documents in 2006 featured the headline, "Purge Supreme Court Activist Rulings!", accompanied by the image of a judge smashing his gavel on a husband-and-wife centerpiece. This was a reference to the recent legalization of same-sex marriage in Canada. His campaign website also featured images of aborted fetuses, which are juxtaposed with and likened to images of massacred children in Rwanda.

In October 2007, he entered the campaign for the leadership of the Social Credit Party of Alberta. He lost to Len Skowronski in a vote in Red Deer on November 3, 2007. He ran for public school trustee in Calgary in 2010 and documented that election on his post-election website. Protesting a change in membership standards in the Christian Heritage Party, he ran in his home riding of Calgary Southwest as an independent in 2011.

He was a candidate for Mayor for the 2013 Calgary municipal elections and received 0.7 percent of the popular vote, coming in fifth out of nine candidates. He is a City Hall attender and frequent presenter from the public at both the committee level and Council public hearings.

In the 2015 federal election he ran in the electoral district of Calgary Heritage as an Independent candidate, his sixth time on the ballot against Stephen Harper. In the 2016 provincial by-election for Calgary-Greenway, he ran as an independent candidate.

On November 7, 2016, Heather was banned from Calgary City Hall for a period of two years due to his behaviour while speaking to council regarding a rezoning issue. Heather opposed all applications for secondary suites, even in communities where he did not live, and was often off-topic while addressing issues. He refused to leave the podium after his 5 minutes of allotted time was up, the same that is granted all speakers, and remained at the podium until he was forced to leave by Calgary Police Service officers.

In 2017, Heather ran for Mayor of Calgary, however his results were lower than his previous attempt. His votes received dropped from 1% total vote down to 0.2%. On December 14, 2017, he also challenged United Conservative Party leader Jason Kenney in the Calgary-Lougheed by-election and came last with 22 votes.