Canadian staying in UK

It is all very vague. For the working holiday visa the amount is given as $4000. This is the most I have seen said about the 6 month visitors visa

This page explains how you can come to the United Kingdom as a general visitor.

To come to the United Kingdom as a general visitor, you must be able to show that:
you are 18 or over;
you only want to visit the United Kingdom for up to six months, or up to
12 months if you are accompanying an academic visitor;

you intend to leave the United Kingdom at the end of your visit;

you have enough money to support and accommodate yourself without working or help from public funds, or you and any dependants will be supported and accommodated by relatives or friends;

you can meet the cost of the return or onward journey; and
you are not in transit to a country outside the common travel area.

You must also show that, during your visit, you do not intend to:
take employment, produce goods or provide services, including the selling of goods or services directo to members of the public;
undertake a course of study;

marry or form a civil partnership, or give notice of marriage or civil partnership;

carry out the activities of a business visitor, a sports visitor or an entertainer visitor; or

receive private medical treatment.

So since you have accommodation I would say you are looking to prove you can feed your self really. If you have a job to go back to proof of that would be good too, anything that shows your intentions of returning to Canada will really be what they are most concerned about.